What is formed if two or more atoms join together?
A. Compound
B. Electronegativity
C. Nucleus
D. Element
HELP

Answers

Answer 1

Answer:

compound

Explanation:

compound = A substance consisting of atoms or ions of two or more different elements in definite proportions joined by chemical bonds into a molecule.


Related Questions

which of the following pairs of molecules can form hydrogen bonds between them? group of answer choices ch3oh and nh3 hcl and hi ch4 and h2o fo2 and ch2o h2 and o2

Answers

Answer:

Hydrogen Bond is the force that exists when H is directly connected to F, O, or N. HCl and HI cannot form hydrogen bonds between them. CH3OH and NH3 can form hydrogen bonds between them. CH4 and H2O cannot form hydrogen bonds between them.

Explanation:

Help asap plsss ! Last question

Answers

Answer:

H20

Explanation:

Because H20 has hydrogen bonding and this is one of the strongest IMF

write the correct name of the Fe(CIO3)3​

Answers

Answer:

Iron(III) Chlorate Fe(ClO3)3 Molecular Weight

Explanation:

Answer: Iron(III) Chlorate should be it

explain the concept of kenetic molecular theory

Answers

Not sure if you meant kinetic.. The theory states that gas particles are in constant motion and exhibit perfectly elastic collisions. The theory is based on the idea that matter is composed of tiny particles that are always in motion.

how do I know which substance is being reduced? ​

Answers

when an atoms oxidation number decreases in a reaction then it’s being reduced. the answer for that question is B

If two atoms have an electronegativity difference of 1.3, what type of bond would form between them?
Select one:a. non polar covalent b. polar covalent. c. ionic​

Answers

Answer:

I would say iconic bond

Explanation:

Answer:
b. polar covalent
Explanation:
any electronegativity difference between .6 and 1.7 is polar covalent and anything greater than 1.7 is ionic, since this is less that 1.7 and greater than .6 the bond is polar covalent
Hope this helps!

Please read question

Answers

Answer:

cant see it

Explanation:

How much does the universe(galaxy) weigh?

Answers

Answer:  Universe

Mass of ordinary matter

The mass of the observable universe is often quoted as 1050 tonnes or 1053 kg. In this context, mass refers to ordinary matter and includes the interstellar medium (ISM) and the intergalactic medium (IGM). However, it excludes dark matter and dark energy.

Density (of total energy): 9.9×10−27 kg/m3 ...

Mass (ordinary matter): 1.5×1053 kg

Contents: Ordinary (baryonic) matter (4.9%); D...

Volume: 3.566×1080 m3

Explanation:  Galaxy

around 1.5 trillion solar masses

Their answer: The galaxy weighs around 1.5 trillion solar masses. This number helps put in perspective how very small we are. Take, for instance, where stars in the Milky Way fit in.

An atom's electron configuration ends with 3p4. If another atom has seven more electrons, what would be the continuation of the electron configuration?

Answers

The continuation of the electron configuration would be [tex]3p^6, 4S^2, 3d^3[/tex].

The initial p orbital is partially filled. Hence, it has to be completely filled first in order to obey the orbital filling rule. Lower energy orbitals are first filled before higher energy orbitals.

After filling the p orbital with 2 electrons from the remaining 7 electrons, higher energy orbital 4s and 3d can then be filled.

More on electron configuration can be found here: https://brainly.com/question/1255220?referrer=searchResults

Answer:

3p^6 4s^2 3d^3

Explanation:

In the following experiment, a coffee-cup calorimeter containing 100mL OF H2O is used.

Answers

Please provide more of the question so I am able to answer, but I do know that H20 has 0 calories.

how do the prefixes of the –saccharide words relate to the structure of the sugar?

Answers

Answer:

The prefixes tell you how many of each there are.

Explanation:

So for this example, mono would mean there is one sugar, di meaning 2 sugars and so on. Hope this helped!

Here is a table:

mono- 1    hexa-6

di-2           hepta- 7

tri- 3          octo- 8

tetra- 4      nona- 9

penta - 5   deca- 10

why does adding lemon juice to blueberry smoothie make it change colour from purple to pink

Answers

The stuff that is used to make lemon has a negative affect on the blueberry therefore the color will change
Because the white colour from lemon juice make the blueberry juice pink

pls answer thisss it's due today​

Answers

Answer:

1.correct

3.correct

Explanation:

pls mark me as brainliest

Answer:

I believe A is the correct answer.

Explanation:

I note that another response includes C. as another correct answer.  It is possible, but it depends on what is meant by "fixed shape."  I interpret "fixed shape" as the collection of the gases forming a fixed shape on their own.  Gases fill the container they are in (be it a flask, room, or a planet, so they have a fixed shape by that definition.  But a primary definition of gases is that that take on the shape of their container, not a shape of their own.

A. is correct because perfect gases have no interactions (AKA the Ideal Gas Laws).  They may have interactions, and often do, but they are weak.  That's why the ideal gas laws are a good first approximation to how gases change volume based on temperature and pressure.

which of these gaseous elements is least reactive hydrogen helium nitrogen or oxygen

Answers

Answer: Nobel gases

i dont know what the options were but i hope that helped

What is the mass of an atom with 15 protons, 13 neutrons, and 14 electrons?​

Answers

Answer:

Silicon (Si)

Explanation:

Add the protons and neutrons mass to get the nucleus mass. Then you get number 14 and 28. looking at the periodic table we can see this matches silicon's atom mass and electron number

1) Loudness and pitch are two important properties of a musical sound

a) If a musician plays a softer note, Which property has been changed, loudness or pitch?

b) If the musician makes the note lower , which property has been changed loudness or pitch

Answers

Answer:

a)loudness has been changed

b) pitch has been changed

what is the chemistry between us?

Answers

No chemistry between us.

A little help here please​

Answers

Answer:

Prokaryotic Cells:

- Bacteria

- Unicellular Organisms

- DNA as genetic material

- Ribosomes

- Do not have membrane bound organelles

- Always contain cell wall

Eukaryotic Cells:

- Contains organelles

- Have membrane bound organelles

- Unicellular Organism

- DNA as genetic material

- Ribosomes

- Have loose strand of DNA

- Has nucleus

- Multicellular Organism

- Plant cell

- Animal cell

Explanation:

I have separated them and made the common characteristics in bold. I cannot guarantee that it is correct, these are my educated estimates.

When 0.019 mol of aluminum sulfate are dissolved in enough water to make 905 milliliters of solution, what is the molar concentration of aluminum ions? Answer in units of M

Answers

Moles sulfate ions in Al2(SO4)3
Molarity= molessulfateions/liters of solution
= 3*.042/.763 moles/liter 12.4

the speed of sound is greater through a solid than through a gas because the molecules in a solid are

A. still
B. vibrating
C. farther apart
D. closer together ​

Answers

the answer should be d) closer together
D) closer together
This is the correct answer
Hope it helps :)

how much heat is released when 32g of water cools from 46°C and freezes

Answers

The amount of heat released when 32g of water cools from 46°C and freezes is 6182.4 J

Heat: This is a form of energy that brings about the sensation of warmth. The S.I unit of heat is Joules (J)

⇒ Formula:

Q = cm(t₂-t₁).................. Equation 1

⇒ Where:

Q = amount of heat releasedc = specific heat capacity of waterm = mass of watert₁ = Initial temperaturet₂ = Final temperature

From the question,

⇒ Given:

m = 32 g = 0.032 kgt₁ = 46 °Ct₂ = 0 °C (Freezing point)c = constant = 4200 J/kg.°C

⇒ Substitute these values into equation 1

Q = 0.032(4200)(0-46)Q = -6182.4 J

Note: The negative sign tells that heat is released and as such can be ignored.

Hence, The amount of heat released is 6182.4 J

Learn more about heat here: https://brainly.com/question/9614649

Fluorine-18 undergoes positron emission as shown:
18 F + 4x +48
Enter the appropriate values for A and Z and the chemical
symbol for X
A:
Z:
83
1
X:

Answers

Answer:Answer:

40-18 fl =>40-cl+cl+0-1e sorry if im rong

Explanation:

When [tex]^1^8F[/tex] undergoes positron emission, the product nucleus is, [tex]^1^8O[/tex].

What is a positron emission?

In positron emission, also called positive beta decay (β+ decay), a proton in the parent nucleus decays into a neutron that remains in the daughter nucleus, and the nucleus emits a neutrino and a positron, which is a positive particle like an ordinary electron in mass but of opposite charge.

When a proton is converted into a neutron then the positron emission takes place as follows.

[tex]^1_1p\;\rightarrow\;^1_0n\;+\;^0_+1e[/tex]

A positron is represented by the symbol. Therefore, when a positron emission occurs then the resultant nuclei atomic number decreases by a unit mass.

The general equation representing positron emission is as follows.

[tex]^M_ZA\;\rightarrow\;^M_Z_-_1 B\;+\;^0_+1e[/tex]

Hence, fluorine-18 decays by positron emission as follows.

[tex]^1^8_9F\;\rightarrow\;^1^8_8n\;+\;^0_+1e[/tex]

Therefore, when [tex]^1^8F[/tex] undergoes positron emission, the product nucleus is, [tex]^1^8O[/tex].

Learn more about positron emission here:

https://brainly.com/question/14472781

#SPJ2

Students set up a controlled experiment. They put five
crickets in each of three identical containers. They set one
container to 15°C, one to 20°C, and one to 25°C. Then they
count the number of cricket chirps in each container
during 1 hour
What are two constants in this experiment?

Answers

Answer:

1- The number of crickets in each container
2- The kind of containers used

Please mark it as brainlest answer:).

Answer:

Here to let the other person have brainliest!!! Enjoy randomer

Explanation:

Select all the correct answers.
In the cathode ray tube experiment, J.J. Thomson passed an electric current through different gases inside a cathode ray tube in the presence of
an electric field. In which two ways did this experiment change scientists' understanding of the atom?
O It showed that atoms combine in different proportions.
O It showed that atoms can be divided into smaller parts.
M It showed that all atoms of the same element are similar.
D
It showed that individual atoms could be destroyed
showed that all atoms contain electrons.

Answers

The two ways the cathode ray tube experiment changed scientists'

understanding of the atom was it showing that atoms can be divided into

smaller parts and all atoms contain electrons.

J.J Thompson was the scientist which performed the cathode ray tube

experiment and was able to ascertain it was negatively charged as a result

of it being deflected to the positive electrode.

His observation showed that the atoms contain sub-atomic particles called

electrons which are negatively charged.

Read more on https://brainly.com/question/15361325

Please help! i will give brainliest!
When a solid air freshener gets smaller over time and runs out is it a physical change or chemical change? please say why?

Answers

Answer:

i think this would be an example of a physical change because here the substance is changing directly from a solid to a gas without passing through the liquid state which means that the composition of the substance has not changed and remains the same. This is also called sublimation.

The reaction below is at dynamic equilibrium. Upper N subscript 2 (g) plus 3 upper H subscript 2 (g) double-headed arrow 2 upper N upper H subscript 3 (g). Which statement is true for the equilibrium system? The concentration of NH3 is greater than the concentration of N2. The concentration of NH3 equals the concentration of N2. The rate of the forward reaction equals the rate of the reverse reaction. The rate of the forward reaction is greater than the rate of the reverse reaction.

Answers

For the reaction below at dynamic equilibrium, it is true that the rate of the forward reaction equals the rate of the reverse reaction.

Let's consider the following reaction at equilibrium.

N₂(g) + 3 H₂(g) = 2 NH₃(g)

What is the chemical equilibrium?

Is a state in which the concentrations of reactants and products are constant and the forward reaction rate and constant reaction rate are equal.

What is the equilibrium constant?

The equilibrium constant (K) is the ratio of the concentrations of the products to the concentrations of the reactants, all raised to their stoichiometric coefficients.

Let's consider which statement is true for the equilibrium system.

The concentration of NH₃ is greater than the concentration of N₂. FALSE. There is not enough information to confirm this, we would need to know the value of K.The concentration of NH₃ equals the concentration of N₂. FALSE. There is not enough information to confirm this, we would need to know the value of K.The rate of the forward reaction equals the rate of the reverse reaction. TRUE. This is always true for a reaction at equilibrium.The rate of the forward reaction is greater than the rate of the reverse reaction. FALSE. At equilibrium, both rates are equal.

For the reaction below at dynamic equilibrium, it is true that the rate of the forward reaction equals the rate of the reverse reaction.

Learn more about chemical equilibrium here: https://brainly.com/question/5081082

Answer:

C

Explanation:

edg

Cu(OH)₂ +H₃PO₄ = Cu₃(PO₄)₂+H₂O

how do i balance this equation

Answers

balanced equation =

3Cu(OH)2 + 2H3PO4 → Cu3(PO4)2 + 6H2O

Where is the Oort cloud located

A) between the orbit of mars and orbit of Jupiter

B) in the different orbits between the sun and Neptune

C) behind the Kuiper belt at the farthest end of the solar system

D) all over the solar system in between the orbits of the planets

Answers

Answer:

If the Oort cloud exists which it most likely does it would be C

Explanation:

1. Predict the shape of the graph for a y versus x plot of air pressure versus altitude.

Answers

Predict the shape of the graph for a y versus c plot of I

BRAINLIEST TO BEST ANSWER AND 40 POINTS GRAB QUICK

Why are sodium (Na) and potassium (K) in the same group on the periodic table?

Answers

Answer:

They both have 1 valence electron

Explanation:

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