If you want a solution that is less than saturated, the amount of HCl needed is less - in this case, 27.5g.
What is saturated?Saturated refers to a state of being filled to capacity or having reached its maximum level. In chemistry, it is used to describe a molecule or compound that has all its available bonds filled with either single or multiple bonds. It is a state of maximum solubility, meaning that no more of a substance can dissolve in a given solvent. In physical science, it can also refer to the highest temperature where a substance can exist in the liquid state without boiling.
The amount of HCl required to make a solution with 100g of water saturated at 60 degrees C depends on the concentration of the HCl solution you are trying to make. If you want to make a saturated solution, the maximum amount of HCl that can be dissolved in 100g of water at 60 degrees C is 55g. If you want a solution that is less than saturated, the amount of HCl needed is less - in this case, 27.5g.
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An energy level diagram is shown below. What is the overall energy change in this reaction?
Using the reaction profile that we can see from the question that has been given, the overall energy change is -250 kJ/mol
What is enthalpy of reaction?Enthalpy of reaction is the amount of heat absorbed or released during a chemical reaction, at a constant pressure. It is a measure of the energy change that occurs when reactants are transformed into products in a chemical reaction.
Enthalpy of reaction is denoted as ΔHrxn, where ΔH is the symbol for the change in enthalpy, and rxn is the abbreviation for "reaction". It is expressed in units of energy per amount of substance, such as joules per mole (J/mol).
Using;
Energy of Products - Energy of reactants
100 - 350 = -250 kJ/mol
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An electron in an unknown energy level of a hydrogen atom transitions to the n=2 level and emits a photon with wavelength 410 nm in the process. What was the initial energy level? Use R[infinity]=2. 179×10−18J for the hydrogen atom Rydberg constant. Use h=6. 626×10−34 Js for Planck's constant. Use c=2. 998×108ms for the speed of light. Your answer should be a whole number
The electron's starting energy level was 1.73.
We can use the energy formula E=hc/λ, where E is the energy of the photon, h is Planck's constant, c is the speed of light, and λ is the wavelength of the photon.
First, let's convert the given wavelength to meters:
λ = 410 nm = 410 × 10⁻⁹ m
Next, we can substitute the given values into the energy formula to find the energy of the emitted photon:
E = (6.626×10⁻³⁴ J s) × (2.998×10⁸ m/s) / (410×10⁻⁹ m) = 4.846×10⁻¹⁹ J
The energy of the emitted photon corresponds to the difference in energy levels between the initial and final states of the electron in the hydrogen atom. We can use the formula for the energy levels of a hydrogen atom: E = -R[infinity] / n², where R[infinity] is the Rydberg constant for hydrogen and n is the principal quantum number.
If the electron transitioned from an initial energy level with principal quantum number n1 to a final energy level with n2 = 2, then we can set up an equation to solve for n1:
E = -R[infinity] × (1/n₂² - 1/n₁²)
Substituting the given values into the equation and solving for n1, we get:
n₁² = (R[infinity] × (1/n₂² - E / R[infinity]))⁻¹ = 3.00
Therefore, the initial energy level of the electron was n1 = √(3) ≈ 1.73 (rounded to the nearest whole number).
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In a calorimeter, 30 g of ice absorbs heat with an enthalpy of fusion of 334 J/g.
What is the heat absorbed in kJ?
Convert your answer to kJ and round to two decimal places.
Enter the number only; no units
The heat absorbed by 30 g of ice absorbs heat with an enthalpy of fusion of 334 J/g in a calorimeter is 10.02kJ.
Given the mass of ice (m) = 30g
The enthalpy of fusion (L) = 334J/g
Let the heat absorbed = Q
We know that in calorimetry, the heat absorbed is equal to the product of mass of substance and its enthalpy of fusion.
According to the above given details,
Q = m * L
Q = 30 * 334 = 10,020J = 10.02kJ
Enthalpy of fusion is the amount of energy required to convert a substance from its solid state to its liquid state at a constant pressure.
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Elabora, en tu cuaderno, un organizador gráfico en el que sintetices la información obtenida en el texto. Evidencia información sobre la formación de los ácidos hidrácidos y oxácidos, su nomenclatura, sus propiedades y su aplicación en la industria
Hydrocid and oxacid acids (formation, nomenclature, properties and application):
HYDRACID ACIDSFormation: binary compounds formed by HYDROGEN and a NON-METAL (from groups 6A and 7A of the periodic table).
Properties: they are found naturally in a gaseous state. They are called hydrocids because when they dissolve in water and dissociate, they generate acidic solutions.
Applications : In the industry they are mostly used for organic synthesis and for the leather tanning industry.
NomenclatureFormula: HX, H is hydrogen and X is the chemical symbol for halogen.
Systematic: name of the acid + suffix -ide + hydrogen. Example: Hydrogen chloride → HCl
Traditional: acid + non-metal + suffix "-hydric". Example: Hydrogen telluric acid → H₂Te
OXACID ACIDSFormation: Acid compounds formed by HYDROGEN, a NON-METAL and OXYGEN. They are obtained by reaction between an anhydride (acid oxide) and water . Hydrogen acts with oxidation number +1 and oxygen with -2.
Properties: They are ternary compounds (formed by three chemical elements), formed by a non-metallic chemical element, oxygen together with hydrogen.
Applications: In the industry it is used to obtain fertilizers for agriculture . As well as it is used for the synthesis of other acids, sulfates and in the petrochemical industry .
Nomenclature
Formula: HaXbOc, H is hydrogen, X is a non-metal element and O is oxygen
Stock : Acid + prefix indicating the number of oxygens + oxo + prefix for the number of non-metallic atoms + root of that atom ending in "-ico" + valence in Roman numerals (in brackets). Example: Dioxochloric acid (III) → HClO₂
Systematic : prefix that indicates the number of oxygens + oxo + prefix for the number of non-metallic atoms + root of that atom ending in "-ate" + valence in Roman numerals (in parentheses) + hydrogen. Example: Hydrogen tetraoxochlorate (VII) → HIO₄
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Translated Question: Prepare, in your notebook, a graphic organizer in which you synthesize the information obtained in the text. Provides information on the formation of hydroacid and oxacid acids, their nomenclature, their properties and their application in industry. help me
A pair of students are assigned a project. They are to design a container to put an egg in that will keep the egg from
breaking when dropped from a height of 10 feet. Before they gather materials for their project, describe the steps in the scientific design process that they should perform
In the egg drop project, Students will apply the principles of momentum and impulse to build housing for an egg survive being dropped from the maximum height possible to solve for momentum and force.
In the egg drop project, there will be several drops from various heights. The egg must survive lower heights to progress to the highest. Student will try a few smaller heights. Only those who survive that is not leaking the smaller drops may proceed to the higher levels. From this egg drop theory a cracked egg is defined as one that is visibly leaking its contents. After each drop, student must be able to quickly open the container to show the egg. Grade will drop if not able to open quickly and may occur error. The container must be constructed with a hatch or a door so that the egg can be inserted or withdrawn too quickly. From this the momentum and the impulse can be determined.
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Which condition is sufficient to show ABC~QPR?
For AABC AQPR to be true, the measures of angles A, C, and D must all be equal; in this case, they must all be equal to 81°. Therefore, conditions A, C, and D are sufficient to show that AABC AQPR.
What is angles ?Angles are points in a plane that are formed when two lines intersect. They can also be formed when one line rotates around a fixed point. Angles are measured in degrees and can be equal to, greater than, or less than a right angle (90°). The four main types of angles are acute (less than 90°), right (90°), obtuse (greater than 90°), and straight (180°). Angles can also be classified as complementary, supplementary, vertical, alternate, and adjacent.
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A biologist examines a tree in an orchard. Name three structures the biologist can examine to indicate that it is a tree. Name two characteristics the biologist can examine to indicate it is an apple tree
Tree- made of bark, have annual rings, have trunk, produce oxygen
Two characteristics that will indicate that it is a tree would be the presence of a trunk and roots.
Two characteristics that will indicate it is an apple tree would be the presence of flowers and apple fruits.
Characteristics of treesStructures to indicate that it is a tree:
Leaves: Trees typically have a branched network of leaves, which are often broad and flat and grow directly from the branches.Roots: Trees have a well-developed root system, which anchors the tree in the ground and absorbs water and nutrients from the soil.Height: Trees are generally tall and have a single main trunk that supports the branches and leaves.Characteristics to indicate it is an apple tree:
Fruit: Apple trees produce apples, which are round, red or green, and typically have a sweet or sour taste.Flowers: In the spring, apple trees produce white or pink flowers, which bloom in clusters and have a distinctive fragrance.More on trees can be found here: https://brainly.com/question/13895881
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Adenine has a molecular mass of 135. 1 and consist of 44. 45%c, 3. 73%h, and 52. 82%n by mass. Determine its molecular formula
The molecular formula for Adenine with molecular mass of 135.1 and consist of 44. 45% C, 3. 73% H, and 52. 82% N by mass is C₃H₃₆N₂.
The molecular formula expresses the number of atoms of each element in one chemical molecule.
The definition of a molecular formula is the formula that shows the exact number of atoms in a molecule.
The empirical formula is used to derive the Molecular Formula when the molar mass value is known.
n=empirical formula molar mass/mass
The molecular formula is frequently the same as or an exact multiple of an empirical formula.
We have molecular formula = 135.14
so we need to find each atoms contribution so,
C = 135.14 /44.45 = 3.03
H = 135.14 /3.73 = 36.21
N = 135.14 / 52.82 = 2.55
So we have molecular formula as,
C₃H₃₆N₂.
Adenine is a nucleic acid component, specifically the nitrogenous base in the structure. Adenine is a nitrogenous base present on both DNA and RNA molecules (examples of nucleic acids). Adenine is a compound of Carbon, Hydrogen, and Nitrogen atoms, and elemental analysis can assist in determining the chemical formula.
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The quantity of electricity that deposit 10. 8g of silver. What mass of aluminum will be deposited by thesame quantity of electricity ( Ag=108, Al= 27, 1F= 96,500 coulomb)
The quantity of electricity that deposit 10.8g of silver is equal to 9,650 coulombs and the the mass of aluminum which will be deposited by the same quantity of electricity is equal to 2.7g.
During the electrolysis process, the amount of substance deposited on an electrode is directly proportional to the amount of electricity passed through the electrolyte solution. This constant of proportionality is called as Faraday's constant. It is equal to 96,500 coulombs per mole of electrons.
In 108g, the number of moles of Aluminum is 1 mole.
In 10.8g, the number of moles of Aluminum is equal to 0.1 moles.
Since 96.500 coulombs of energy is used to transfer 1 mole of substance, So, 9650 coulombs of energy will be required to transfer 0.1 moles of the substance.
Since 27g of Aluminum will be transferred by 96500 coulombs of energy, so in 9650 coulombs of energy, 2.7g of Aluminum will be deposited.
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Un estudiante tiene 6 galletas Graham, 3 piezas de chocolate y 4 malvaviscos. Para hacer un s'more, un estudiante necesita usar dos galletas Graham, una pieza de chocolate y dos malvaviscos. ¿Cuál de los siguientes describe con precisión los reactivos limitantes y en exceso dados estos materiales? Pregunta 1 opciones: Los malvaviscos serían el reactivo limitante y las galletas graham y el chocolate serían el exceso. Se pueden hacer dos s'mores. El chocolate sería el reactivo limitante y las galletas graham y los malvaviscos serían el exceso. Se pueden hacer tres s'mores. El chocolate sería el reactivo limitante y las galletas graham y los malvaviscos serían el exceso. Se pueden hacer dos s'mores.
Answer:
Dado que los malvaviscos solo pueden hacer 2 s'mores, son el reactivo limitante. Esto significa que el número máximo de s'mores que se pueden hacer es 2.
Por lo tanto, la respuesta correcta es: los malvaviscos serían el reactivo limitante y las galletas graham y el chocolate serían el exceso. Puedes hacer dos s'mores.
Explanation:
there are two main reasons that radiocarbon (14c based) age is offset from calendar (true) age. one is that the standard half life adopted is slightly shorter than the correct half life for 14c. what is the other main reason?
The other main reason that radiocarbon (14C based) age is offset from calendar (true) age is because of variations in the concentration of 14C in the atmosphere over time.
Radiocarbon dating is a technique for determining the age of an object by measuring the quantity of the radioactive isotopes of carbon contained within it. It relies on a specific natural decay process of the radioactive isotope carbon-14 (14C) into stable carbon isotopes.
Carbon-14 (14C) is a radioactive isotope that is created in the Earth's upper atmosphere when cosmic rays collide with nitrogen atoms. This is followed by the decay of 14C into stable nitrogen, with a half-life of 5,700 years.
As a result, living organisms absorb 14C as they consume carbon-containing food. When an organism dies, it no longer consumes carbon, and the 14C in its tissues starts to decay.
By measuring the ratio of 14C to stable carbon isotopes in the remains, scientists can determine the age of the organism or object.
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What is the pH of water?
A. 7
O
B. 1 x 107
O
C. -7
D. 1 x 107
Answer: a= 7
Explanation:
How many moles of NaOH are needed to create a 2 M solution in 8 liters of solution? Please help, I’m really stuck on this one.
Answer:
To calculate the number of moles of NaOH needed to create a 2 M solution in 8 liters of solution, we need to use the formula:
moles = molarity x volume (in liters)
Here, the molarity (M) is given as 2 M, and the volume (V) is given as 8 liters.
So,
moles = 2 M x 8 L
= 16 moles
Therefore, 16 moles of NaOH are needed to create a 2 M solution in 8 liters of solution.
Explanation:
2... The table below shows the results of tests carried out on a salt D. Copy and complete the table. Test (a) (i) D + 10 cm³ of distilled water (ii) Solution D tested with litmus paper (b) (i) D (aq) + NaOH(aq) in drops, then in excess (ii) D (aq) + dil. NH3 solution in drops, then in excess (c) D (aq) + dil. HNO3 + AgNO3(aq) + NH3(aq) (d) Write the formula of the salt. Observation D dissolved to give a colourless solution White gelatinous precipitate Precipitate dissolved No visible reaction.. White precipitate Precipitate dissolved Inference Solution is acidic Zn²+ present
The question deals with the process of qualitative analysis and the salt we are to identify is D which is ZnCl2.
What is qualitative analysis of metal ions in chemistry?Qualitative analysis of metal ions in chemistry is the process of identifying the presence or absence of various metal ions in a given sample through the use of chemical tests. Qualitative analysis is important because it helps to identify the chemical composition of a substance.
We can see that the time that the NaOH(aq) in drops, then in excess was added, there was the appearance of a ppt which is Zn(OH)2. This is going to dissolve in excess.
Addition of dil. HNO3 + AgNO3(aq) + NH3(aq) would confirm the presence of the chloride anion.
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The element thallium is 70% thallium-205 and 30% thallium-203. Calculate its relative atomic mass. Give your answer to 4 significant figures.
The relative atomic mass is205.976 amu x
Atomic mass calculation.
Relative atomic mass (also called atomic weight) is the average mass of the atoms in a naturally occurring sample of an element, taking into account the abundance of each isotope of the element. It is a dimensionless quantity, defined as the ratio of the average mass per atom of the element to the unified atomic mass unit (u or Da).
To calculate the relative atomic mass of thallium, we need to take into account the abundance and atomic masses of its two isotopes, thallium-205 and thallium-203.
Let X be the relative atomic mass of thallium.
The atomic mass of thallium-205 is 205.976 amu, and its abundance is 70% or 0.7.
The atomic mass of thallium-203 is 202.972 amu, and its abundance is 30% or 0.3.
Using the formula for calculating relative atomic mass, we have:
X = (205.976 amu x
Overall, the answer has been rounded to four significant figures, which is the same as the least number of significant figures given in the input data (two significant figures for the isotopic abundances).
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What is the percent abundance (in units of percent) of zinc in a sample whose density is 7. 537 g/ml and the only other component is copper? the density for pure copper is 8. 96 g/cm3 and the density of pure zinc is 7. 13 g/cm3. Report your answer to one decimal place
The percentage of abundance of zinc is 20.16 % whose density is 7.13 g/cm3.
Density of the mixture is 7.039 g/ml.
Density of Cu is 8.96 g/ cm3.
Density of Zn is 7.13 g/cm3.
The fractional abundance of copper is 0.946.
Density is defined as the substance's mass per unit of volume. The symbol of density is ρ. Mass is defined as the quantity of matter while volume is the measure of space occupied by the object. The ratio of the mass and volume of the matter is known as density.
Mass of the mixture is equals to the mass of the copper and the mass of the zinc.
Mass of mixture = Mass of copper + mass of Zinc
We know that, Density = Mass * Volume
Putting the values in this we can find the percentage of abundance of zinc.
Volume of zinc / volume of mixture = 0.20156
Percentage abundance is defined as the quantitative measurement of the percentage of a specific isotope present on earth. This gives the abundance of that particular isotope.
So percentage of abundance of zinc in the mixture is,
= 0.20156 * 100 %
= 20.16 %
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The question is incomplete.
What is the percent abundance (in units of percent) of zinc in a sample whose density is 7.039 g/mL and the only other component is copper with a fractional abundance of 0.946? The density for pure copper is 8.96 g/cm3 and the density of pure zinc is 7.13 g/cm3. Report your answer to one decimal place.
30 POINTS!!!
describe an electron cloud the name and explain a particular atomic model that use the concept of the electron cloud
written question
Answer:
Explanation:
Electron clouds are the portion that is found around the nucleus where the probability of electrons getting found is the most. The theory that describes about the electron cloud is quantum mechanical model (Schrodinger atomic model). Schrodinger suggested that the electrons are observed around the nucleus.
Name the product(s) in the reaction. A scientist has 4 pieces of copper. Each piece is a different shape and size (samples A through D). The scientist imagines what a very small piece of sample A would look like if she could see its atoms. She includes 20 copper atoms in the model she draws of this very small piece of sample A. If you were to draw a model of the atoms in a very small piece of sample B, that was the same size as the very small piece from sample A and at the same temperature; which of the following features would be the same in the model of samples A and B.
Answer:
A answer is write answer
Please Help
1. Convert 1.65 moles of magnesium chloride to grams
2. how many moles are in 100 grams of methane (CH4)
Answer:
157 grams magnesium chloride
Explanation:
1. We must first find the molar mass (g/mole) of magnesium chloride. The molecular formula is MgCl2.
Add the elemental atromic weights for one molecule of the material:
1 Mg = 24.3
2 Cl = 2*(35.45) = 70.9
Total = 95.2 grams/mole
We can use this as a conversion factor by multiplying it times the moles we are asked to convert: (1.65 moles MgCl2)*(95.2 grams/mole MgCl2).
The moles cancel, leaving us with 157 grams of magnesium chloride.
Please Help. Complete the number of bonds and the total energy for each. Don't forget to state whether this is on the product or reactant side by highlighting the correct one. CEC # of bonds single bond O=O # of bonds C-H # of bonds C-O # of bonds H-O # of bonds (product/reactant) side (product / reactant) side (product/reactant) side (product/reactant) side (product / reactant) side Energy: Energy: Energy: Energy: Energy:
CEC-C-H: 9 bοnds (reactant) / 0 bοnds (prοduct)
C-O: 0 bοnds (reactant) / 2 bοnds (prοduct)
H-O: 0 bοnds (reactant) / 1 bοnd (prοduct)
What are the number οf bοnds fοr each element invοlved in the reactiοn?
CEC: The reactant side has 9 C-H bοnds, while the prοduct side has 0 C-H bοndsCEC: The reactant side has 0 C-O bοnds, while the prοduct side has 2 C-O bοnds.CEC: The reactant side has 0 H-O bοnds, while the prοduct side has 1 H-O bοnd.Single bοnd O=O: The reactant side has 0 O=O bοnds, while the prοduct side has 2 O=O bοnds.The tοtal energy fοr each bοnd is nοt prοvided, but the number οf bοnds and whether they are οn the reactant οr prοduct side is given.
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An element has two stable isotopes. One
has a mass of 106.91 amu and is
51.839% abundant. The second has a
mass of 108.90 amu and is 48.161%
abundant.
What is the identity of this element?
1. Silver 2. Sodium
3. Oxygen 4. Fluoride
Enter the answer choice number.
Answer:
The identity of the element can be determined by comparing the atomic masses of the known isotopes with the atomic masses of the elements listed in the answer choices.
The weighted average atomic mass of the element can be calculated as follows:
(0.51839 × 106.91 amu) + (0.48161 × 108.90 amu) = 107.87 amu
The closest match to this atomic mass is option 1, Silver. The atomic number of silver is 47, which means it has 47 protons in its nucleus. The two stable isotopes of silver are ^107Ag and ^109Ag, which have atomic masses of 106.905 amu and 108.905 amu, respectively. The given atomic masses of the isotopes in the question are not exact matches to the known isotopes of silver, but they are close enough to identify the element as silver.
Therefore, the answer is 1. Silver.
4. 35 L of a gas is at 1. 16 atm. What will be its
volume at 1 atm?
k
0 0. 267 L
0 0. 198 L
0. 0185 L
5. 05 L
3. 75 L
The volume of the gas at 1 atm will be 5.05 L. Option D is correct.
To solve this problem, we can use the combined gas law, which relates the pressure, volume, and temperature of a gas:
P₁V₁/T₁ = P₂V₂/T₂
where P₁, V₁, and T₁ are the initial pressure, volume, and temperature, respectively, and P₂ and V₂ are the final pressure and volume, respectively.
Assuming the temperature is constant, we can rearrange the equation to solve for V₂:
V₂ = (P₁/P₂) × V₁
Plugging in the given values, we get:
V₂ = (1.16 atm/1 atm) × 4.35 L = 5.046 L
Therefore, the volume of the gas at 1 atm will be approximately 5.05 L (rounded to three significant figures).
Hence, D. 5. 05 L is the correct option.
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--The given question is incomplete, the complete question is
"4. 35 L of a gas is at 1. 16 atm. What will be its volume at 1 atm? k A) 0 0. 267 L B) 0 0. 198 L C) 0. 0185 L D) 5. 05 L E) 3. 75 L"--
Grades on tests can also be thought of as a
success statistic. How would you define the actual score and theoretical
score on an exam, and how would you calculate the percent success?
The actual score on an exam refers to the number of points earned by a student on the test, while the theoretical score is the maximum possible score that a student could have earned if they answered every question correctly.
What is concentration?In chemistry, concentration refers to the amount of solute that is dissolved in a given amount of solvent or solution. It is typically expressed in units such as molarity (moles of solute per liter of solution), molality (moles of solute per kilogram of solvent), or percent concentration (the percentage of solute in a solution by mass or volume). Concentration plays an important role in determining the properties and behavior of a solution, including its reactivity, solubility, and osmotic pressure. It also affects the rate of chemical reactions, as the frequency of collisions between molecules or ions is related to their concentration in the reaction mixture.
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During which step in "Steps to Solve a Problem" should students pick a strategy to use? Step 1 Step 2 Step 3 Step 4
Students should pick a strategy to use during Step 2 of "Steps to Solve a Problem."
In Step 1, students should read the problem and try to understand what is being asked of them. In Step 2, they should analyze the problem and identify what type of problem it is and what strategies could be used to solve it. This is where they should pick a strategy or method to solve the problem.
In Step 3, students should develop a plan for solving the problem using the strategy they have chosen. In Step 4, they should execute the plan and check their work to make sure it is correct.
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Answer:
Step 2
Explanation:
If lon X has a charge of 1+ and lon Y has a charge of 3-, the chemical formula of the
ionic compound they form is
The name of the ionic compound formed by Ion X and Ion Y would be written as Ion X₃Y.
What is the name of ionic compound they form?Ion X with a charge of 1+ means that it has lost one electron, while Ion Y with a charge of 3- means that it has gained three electrons.
To form an ionic compound, the ions must combine in such a way that the overall charge of the compound is neutral. This is achieved by combining one Ion X ion with three Ion Y ions, since 1+ charge of Ion X can be balanced by the combined 3- charge of three Ion Y ions.
The chemical formula of the ionic compound formed by Ion X and Ion Y would be written as X⁺¹(Y)³⁻
where;
X represents the Ion X ion and Y represents the Ion Y ion.So, the name of the ionic compound formed by Ion X and Ion Y would be written as Ion X₃Y.
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what kind of intermolecular forces act between a chloroacetylene molecule and a dichloroethylene molecule?
The kind of intermolecular forces that act between a chloroacetylene molecule and a dichloroethylene molecule is dipole-dipole and London dispersion forces.
Let's understand this in detail:
1. Intermolecular forces are the forces of attraction or repulsion between molecules. Different types of intermolecular forces exist, such as dipole-dipole forces, London dispersion forces, and hydrogen bonding. These forces play a significant role in determining the physical properties of a substance, such as melting point, boiling point, and vapor pressure.
2. The chloroacetylene molecule and a dichloroethylene molecule are polar molecules with positive and negative ends. The positive and negative ends of the molecules attract each other by a dipole-dipole force.
3. Dipole-dipole forces are the forces of attraction between polar molecules. The strength of these forces depends on the magnitude of the molecule's dipole moment. The larger the dipole moment of the molecule, the stronger the dipole-dipole force.
4. London dispersion forces occur between nonpolar molecules such as dichloroethylene. The molecule's electrons are constantly in motion, and they may be distributed unevenly at any instant. The temporary distribution of electrons creates an instantaneous dipole that attracts neighboring molecules. The instantaneous dipoles fluctuate with time, leading to temporary dipoles in neighboring molecules. The temporary dipoles result in attractive forces between the molecules.
5. In conclusion, the type of intermolecular forces that act between a chloroacetylene molecule and a dichloroethylene molecule is dipole-dipole and London dispersion forces.
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2 C4H10 + 13 O2 ---> 8 CO2 + 10 H2O 5. You have 68.75 g of C4H10 what is the theoretical yield in grams of water?
The theoretical yield of H2O from 68.75 g of C4H10 is 106.6 g.
What is the molecular theoretical yield of CO2?We now know that the theoretical yield of CO2 C O 2 is 2.56 mol since the limiting reactant dictates it.
For the combustion of C4H10, the balanced equation is:
2C4H10 + 13O2 → 8CO2 + 10H2O
First, let's calculate the number of moles of C4H10:
molar mass of C4H10 = 4(12.01) + 10(1.01) = 58.12 g/mol
C4H10 mass is equal to its molar mass in C4H10 moles.
moles of C4H10 = 68.75 g / 58.12 g/mol
moles of C4H10 = 1.183 mol
According to the balanced equation, 2 moles of C4H10 produce 10 moles of H2O. As a result, the amount of water generated is:
moles of H2O = (moles of C4H10) x (10 moles H2O / 2 moles C4H10)
moles of H2O = 1.183 mol x 5
moles of H2O = 5.915 mol
The amount of moles of water can finally be converted to grams:
molar mass of H2O = moles of H2O x
mass of H2O = 5.915 mol x 18.02 g/mol
mass of H2O = 106.6 g.
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What chemical reactions are taking place inside the mouse?
Answer:
the heart and blood
Explanation:
the blood jus move threw heart or sum
YooooooOOO!! Help!
Which of the following statements is incorrect concerning BaF2?
Question 2 options:
The total number of fluoride ions present in one formula unit is 2(6.022 x 1023).
The total number of fluoride ions present in three moles of BaF2 is equal to 6 x (6.022 x 1023).
The mass of 0.600 moles of BaF2 is 105 grams.
0.600 moles of BaF2 is equivalent to 3.61 x 1023 formula units of BaF2.
Explanation:
The total number of fluoride ions present in three moles of BaF2 is equal to 6 x (6.022 x 1023).4) SiO2 + CSIC + CO Find the theoretical yield of silicon carbide if 50.0 grams of silicon dioxide reacts with 79.1 grams of Carbon.
The mass of the Silicon Carbide is 33.3 g using the data that has been presented in the question before us.
What is the stoichiometry?In a balanced chemical equation, the coefficients in front of the chemical formulas represent the number of moles of each substance that participate in the reaction.
We can see that;
Number of moles of silicon dioxide = 50.0 grams/60 g/mol
= 0.833 moles
Number of moles of Carbon = 79.1 g/12 g/mol = 6.6 moles
Now silicon dioxide is the limiting reactant.
Thus;
The theoretical yield of the silicon carbide is;
0.833 moles * 40 g/mol
= 33.3 g
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