The number of protons and neutrons in an atom is that atoms __ number.

Answer:

Specific chemical sugar glucose

Explanation:

When we say “blood sugar,” we mean the specific chemical sugar glucose. Diabetes is all about glucose. There lots of sugars….table sugar is sucrose, malt sugar is maltose, milk sugar is lactose, and you’ve probably heard of fructose.

Blood sugar, or glucose, is the main sugar found in your blood. It comes from the food you eat, and is your body's main source of energy. Your blood carries glucose to all of your body's cells to use for energy.

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Answer:

condenses

Explanation:

change or cause to change from a gas or vapor to a liquid.

When the concentration of NADH increases while the concentration of NAD+ decreases, the electrochemical potential however will increase

Electrochemical potential can be defined as a measure of the difference between the average energy of the outermost electrons of the molecule or element in its two valence states.

NADP is a coenzyme and simply has it full meaning as Nicotinamide Adenine Dinucleotide Phosphate

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Answer:

answer is nitrogen dioxide

Answer:

Carbohydrates

Explanation:

first of all, I took a quiz and got it right but also Carbohydrates fuel the body and are broken down and made into glucose that can be absorbed into the bloodstream. so when absorbed into the bloodstream they travel in the blood to the body's cells where they are used for respiration.

The volume of the soft drink solution in milliliters that contains 102.5 g of sucrose is 11.93mL.

The volume of a solution can be calculated by dividing the mass by the density. That is;

Volume = mass/density

According to this question, a soft drink contains 12.1% sucrose (C12H22O11) by mass. This means that the mass of the sucrose is

12.1/100 × 102.5 = 12.40g of sucrose

Volume = 12.40g ÷ 1.04g/mL

Volume = 11.93mL

Therefore, the volume of the soft drink solution in milliliters that contains 102.5 g of sucrose is 11.93mL.

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Entropy is commonly understood as the system's degree of disorder or unpredictability. The correct option is, (C) (iii) only

Entropy is a thermodynamic number that represents the inability of a system's thermal energy to be converted into mechanical work and is commonly understood as the system's degree of disorder or unpredictability.

The degree of unpredictability of a molecule rises when it transitions from a solid to a liquid state. As a result, the entropy will rise.

Similarly, when we move from a liquid to a gaseous state, the unpredictability of the molecule increases. As a result, the entropy will rise.

However, as we progress from gas to liquid to solid, the degree of molecular randomization reduces. As a result, the entropy will decrease.

Or, to put it another way, the higher the number of moles in a product, the higher the entropy.

(i) [tex]N_2(g)+3H_2(g) \rightarrow 2NH_3(g)[/tex]

Entropy falls in this reaction because the number of moles on the product side is fewer than the number of moles on the reactant side.

(ii) [tex]C_{10}H_8(g) \rightarrow C_{10}H_8(s)[/tex]

Entropy lowers in this process because the degree of randomness of the molecules diminishes as we move from a gas to a solid-state.

(iii) [tex]CH_3OH(l)\rightarrow CH_3OH(aq)[/tex]

Because the methanol liquid dissociated into ions, the number of moles present on the product side is more than the number of moles present on the reactant side, entropy rises in this reaction.

Hence, the correct option is, (C) (iii) only.

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Answer:

hydrochloric acid (HCl)

Explanation:

balanced equation: Ca(OH)2+2HCl -> CaCl2+2H2O

85.0/36=2.33 mol HCl

120/74=1.62 Ca(OH)2

2.33 mol HCl x 1 mol CaCl2/2 mol HCl = 1.165 mol CaCl2

1.62 mol Ca(OH)2 x 2 mol CaCl2/1 mol Ca(OH)2 = 3.24 mol CaCl2

Taking into account the Charles's law, to 94.36 K or -178.64 °C must a sample of helium gas be cooled from 139ºC to reduce its volume from 3.1 L to 0.71 L at constant pressure.

This law states that the volume is directly proportional to the temperature of the gas: for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases, and as the temperature decreases, the volume of the gas decreases.

In summary, Charles' law is a law that says that when the amount of gas and pressure are kept constant, the ratio between volume and temperature will always have the same value:

[tex]\frac{V}{T} =k[/tex]

Studying two different states, an initial state 1 and a final state 2, it is satisfied:

[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]

In this case, you know:

Replacing in Charles's law:

[tex]\frac{3.1 L}{412 K} =\frac{0.71 L}{T2}[/tex]

Solving:

[tex]\frac{3.1 L}{412 K} T2=0.71 L[/tex]

[tex]T2 =\frac{0.71 L}{\frac{3.1 L}{412 K}}[/tex]

T2= 94.36 K= -178.64 °C

Finally, to 94.36 K or -178.64 °C must a sample of helium gas be cooled from 139ºC to reduce its volume from 3.1 L to 0.71 L at constant pressure.

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Yes, we can dissolve 35 moles of KMnO₄ into 500 mL of water to give a molarity of 70 M

Molarity is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:

Molarity = mole / Volume

Molarity = mole / Volume

Molarity = 35 / 0.5

Molarity = 70 M

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We can not dissolve 35 moles of potassium permanganate into 500 ml of water as it produces the solution with higher molarity than water have.

Molarity of any solution is define as the number of moles of solute present in per liter of the solvent as:

M = n/V

The molarity of the solvent, water, is the highest for aqueous solutions and molarity of 1000g of pure water in 1 liter is 55.5M

Given that,

On putting values, we get

M = 35/0.5 = 70M

Preparation of this solution is impossible.

Hence, KMnO₄ will not dissolve in the water as it produces solution with higher molarity than water.

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Answer:

a transverse electric wave and a magnetic transverse wave that are perpendicular and are moving in the same direction.

Explanation:

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Mass defect for oxygen-16 = 0. 13261 amu, in the kilograms the mass defect equals to 2.20 × 10⁻²⁸ kg.

Mass defect is the difference between the mass of of an whole atom and the combined mass of its individual particles present in that atom.

We know that, 1 amu = 1.6 × 10⁻²⁷ kg

Given that, mass defect for oxygen-16 = 0.13261 amu

To calculate this defect in terms of kilograms, we have to convert into kg unit as:

0.13261 amu = 0.13261 amu × 1.6 × 10⁻²⁷ kg/amu

0.13261 amu = 2.20 × 10⁻²⁸ kg

Hence option (2) is correct.

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Percentage yield tells the percentage ratio of actual to theoretical yield. The theoretical yield of iron(III) sulfate is 26.52 g.

The theoretical yield is the product formation from the complete modification of the limiting reagent in a chemical reaction.

The balanced chemical reaction is shown as,

[tex]\rm 2FePO_{4} + 3Na_{2}SO_{4} \rightarrow Fe_{2}(SO_{4})_{3} + 2Na_{3}PO_{4}[/tex]

Moles of ferric phosphate is calculated  as:

[tex]\begin{aligned} \rm n &= \rm \dfrac{mass}{molar \; mass}\\\\&= \dfrac{20}{150.82}\\\\&= 0.1326\;\rm mol\end{aligned}[/tex]

From the reaction,

[tex]\dfrac{1 \;\rm mol \; Fe_{2}(SO_{4})_{3} }{2 \;\rm mol \; FePO_{4}}&= \dfrac{\rm X}{ 0.1326 \;\rm mol \; FePO_{4}}[/tex]

Solving for X:

[tex]\begin{aligned} \rm X &= (\dfrac{0.1326}{2}) \times 1 \rm \; mol\\\\&= 0.0663 \;\rm mol \;Fe_{2}(SO_{4})_{3}\end{aligned}[/tex]

Calculating mass from moles:

[tex]\begin{aligned}\rm mass &= \rm moles \times molar \rm \; mass\\\\&= 0.0663 \;\rm mol \times 399.88 \;\rm g/mol \\\\&= 26.51\;\rm g\end{aligned}[/tex]

Therefore, option A. 26.52 gm is the mass of iron(III) sulfate.

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Answer:

A) 26.52

Explanation:

Given the pressure in KPa, the value of the pressure reading in torr obtained is 20.73 torr

101.325 KPa = 760 torr

The value of the pressure in torr can be obtained as illustrated below:

101.325 KPa = 760 torr

Therefore,

2.76324 KPa = (2.76324 × 760) / 101.325

2.76324 KPa = 20.73 torr

Thus, 2.76324 KPa is equivalent to 20.73 torr

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The two step synthesis 2‑hydroxy‑2,4‑dimethyl pentanoic acid of involves compounds as represented in the attached image.

From the task content:

It therefore follows that the Starting compound A and intermediate compound B are as represented in the attached image.

Remarks: The reagents provided are, H3O, Potassium cyanide and Hydrogen cyanide.

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Answer: A “rate” is a measure of the speed of any change that occurs within an interval of time In chemistry, reaction rate is expressed as the amount of reactant changing per unit time. Example: 3 moles/year, or 5 grams/second

Explanation: A “rate” is a measure of the speed of any change that occurs within an interval of time In chemistry, reaction rate is expressed as the amount of reactant changing per unit time. Example: 3 moles/year, or 5 grams/second

Answer:

Chemical reaction rates are usually expressed as the concentration of reactant consumed or, the concentration of product formed per unit time.

Explanation:

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Answer:

To protect people and the environment.

Explanation:

In an ecosystem, the  goal of all environmental regulations is to protect people and the environment.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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Answer:

125.6168064 is the answer

Answer:

The answer is B which is 40

From the calculations and the data presented, the total volume in the flask is 100cm^3

A neutralization occurs between an acid and a base to yiled salt and water only.

The reaction equation here is; HCl + NaOH -----> NaCl + H2O. Now, the volume of HCl used is obtained from;

2 * 20 * 1/0.5 * 1 = 80 cm^3

Total volume in the flask =  80 cm^3 + 20cm3 = 100cm^3

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The amount of the amino acid glycine that is found in Stan’s apparatus is more than that of murchison meteorite.

It should be noted that amino acid simply means organic compounds that contain both amino and carboxylate.

In this case, the amount of the amino acid glycine that is found in stan’s apparatus is more than that of murchison meteorite. This was depicted by the fraction of the three amino acids in the scenario.

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The actual amount of the amino acid glycine found in Stan’s apparatus is more than the amount of glycine in the Murchison meteorite.

Amino acids are the building blocks of proteins. The building blocks of life are amino acids and proteins.

In this example, the amount of glycine detected in Stan's equipment is more than that found in the Murchison meteorite. The fraction of the three amino acids in the scenario represented this.

Hence amount of amino acid is more in Stan's apparatus as compared to the Murchison meteorite.

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The current required to plate out 2.96 g of nickel from the solution of Ni²⁺ in 27.12 minutes is 5.95 A

We'll begin by writing the balanced equation showing the number of faraday required to plate nickel. This is given below

Ni²⁺ + 2e —> Ni

Molar mass of Ni = 59 g/mol

Mass of Ni from the balanced equation = 1 × 59 = 59 g

Number of faraday = 2 F

1 faraday = 96500 C

2 faraday = 2 × 96500 = 193000 C

SUMMARY

From the balanced equation above,

59 g of Nickel was deposited by 193000 C of electricity

From the balanced equation above,

59 g of Nickel was deposited by 193000 C of electricity

Therefore,

2.96 g of Nickel will be deposited by = (2.96 × 193000) / 59 = 9682.71 C of electricity

I = Q / t

I = 9682.71 / 1627.2

I = 5.95 A

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The current required to plate out 2. 96 g of nickel from a solution of ni2 in 27. 12 minutes is 5.95 ampere.

Current is a charged particle moving through an electrical conductor.

The equation is [tex]\rm Ni^2^+ + 2e = Ni[/tex]

step 1: calculate the mass of Ni

Molar mass of Ni is 59 g/mol

59 × 1 = 59 g

Step2: calculate the number of Faraday

no. of Faraday is 2F

1 Faraday = 96500 C

then, 2 Faraday is equal to 2 × 96500 = 193000 C

Step 3: calculate the quantity of electricity

59 g of Nickel is deposited by, 193000 C of electricity

So, for 2.96 g of nickel

[tex]\dfrac{2. 96\;g \times 193000}{59} = 9682.71 \;C[/tex]

Step4: calculate the current:

Electricity Q = 9682.71 C

Time = [tex]27.12 \times 60 = 1627.2 \;s[/tex]

To find current

[tex]I = \dfrac{Q}{t} \\\\I = \dfrac{9682.71 }{1627.2}\\I = 5.95 A[/tex]

Thus, the current required is 5.95 ampere.

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Answer:

The air resistance is a special type of frictional force that acts upon objects as they travel through the air. The force of air resistance is often observed to oppose the motion of an object. This force will frequently be neglected due to its negligible magnitude (and due to the fact that it is mathematically difficult to predict its value). It is most noticeable for objects that travel at high speeds (e.g., a skydiver or a downhill skier) or for objects with large surface areas. Air resistance is a contact force.

The force of gravity is the force with which the earth, moon, or other massively large object attracts another object towards itself. By definition, this is the weight of the object. All objects upon earth experience a force of gravity that is directed "downward" towards the center of the earth. Gravitational force is considered to be a non-contact force because it is an attracting force which does not include contact between the objects to exert force

Answer:

The electron arrangement of the outer energy level of an atom determines whether or not it will form chemical bonds.

Explanation:

1) A. individual salt crystals

2) A. increases

3) A. increases

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A solution is defined as the homogeneous mixture which contain one or more solutes in a solvent. The factors which affect the solubility are temperature and pressure. Here individual salt crystals dissolve faster.

The maximum amount of solute which can dissolve in a given quantity of the solvent at a certain temperature is defined as the solubility. It is defined as the property exhibited by a material to dissolve in a given solvent.

The powdered salt found to dissolves faster in a solvent than the salt of larger size. The rate of dissolving is affected by the size of the solute. The faster the solute dissolves if its size is smaller. So the  individual salt crystals dissolves faster.

In most cases, generally the solubility found to decrease with the increase of temperature. When the temperature increases, the kinetic energy of the molecules increases and thereby decreases the intermolecular force of attraction. The increase in the process of agitation decreases the solubility.

1. The correct option is A

2. The correct option is B

3. The correct option is B

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Based on the equation of the reaction, nitrogen is the limiting reagent while hydrogen is the excess reagent.

Hydrogen and nitrogen combines to form ammonia ina mole ratio of 3 : 1 as shown by the equation of the reaction below:

The number of moles of the reactants in 14g of Nitrogen gas and 8.0g of hydrogen is calculated as follows:

Molar mass of N_{2} = 14.0 g

Molar mass of H_{2} = 2.0 g

Moles of N_{2} = 14/14.0 = 1 mole

Moles of H_{2} = 8/2.0 = 4 moles

Based on the data above:

Therefore, the limiting reagent is nitrogen while hydrogen is the excess reagent.

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Larger differences in air pressure over a small area makes the wind blow faster and stronger.

Pressure is defined as the force applied on an object perpendicular to it's surface per unit area over which it is distributed.Gauge pressure is a pressure which is related with the ambient pressure.

There are various units by which pressure is expressed most of which are derived units which are obtained from unit of force divided by unit of area . The SI unit of pressure is pascal .

It is a scalar quantity which is related to the vector area element with a normal force acting on it.It is distributed over solid boundaries and across arbitary sections of fluid normal to the boundaries at every point.

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