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stepan [7]
3 years ago
9

Choose all that correctly complete the statement. Chemical reactions can...

Chemistry
2 answers:
Slav-nsk [51]3 years ago
5 0
The correct answers are A, B, and C

- For example, hydrogen and oxygen are two elements that form to create water. Water is more complex than a simple atom of hydrogen or one of oxygen.

- Decomposition is an example of B

- Burning is an example of C.

D is not right because a chemical change can only join atoms or rearrange them, not completely change them.
deff fn [24]3 years ago
3 0
<span>Choose all that correctly complete the statement. Chemical reactions can...

A. create products more complex than the reactants.
B. break down reactants into simpler products.
C. give off energy as heat.. </span>
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Help plz:)))I’ll mark u Brainliest
4vir4ik [10]
Matter is anything that has mass and occupies space, It can exist in 3 states, or phases: solid, liquid, and gas.

Solid molecules are closely packed together and retain a fixed shape.

Liquid molecules aren't packed very closely, and take the shape of the bottom of the container.

Gas molecules are far apart and fill the container

completely.
7 0
3 years ago
Read 2 more answers
What are the characteristics of non-ideal solutions? a. The solute-solute and solvent- solvent interaction is different fromm th
finlep [7]

Answer:All the above

Explanation:

Non-ideal solutions are those solutions which do not obey Raoult's law in any conditions.

The molecular interactions of two components that is solute and solvent  are different.

If there are two components A and B then the molecular interaction between A-A,B-B would be different from the molecular interactions in A-B .

The enthalpy of mixing and volume of mixing for non-ideal solutions have  non zero values.

Enthalpy of mixing can be negative or positive in case of non-ideal solutions. If the enthalpy of mixing is negative so energy has been  released upon mixing the two components and if enthalpy of mixing is positive then energy is absorbed upon mixing the two components.

Non-ideal solutions are simply those solutions which are not ideal hence they should not be having the characterstics of ideal solutions.

For ideal solutions the molecular interactions between  the two components are equal.

So the molecular interaction between A-A,B-B  would be equal to the molecular interaction between A-B. Also the enthalpy of mixing and volume of mixing for ideal solutions are zero hence all the statements provided here are correctly charactersing non-ideal solutions.

4 0
4 years ago
How many moles are in a sample of 4.57 x 10^24 atoms of neon (Ne)?
balu736 [363]

Hello!

To find the number of moles in a sample of 4.57 x 10^24 atoms, we need to use Avogadro's number, which is 1 mole = 6.02 x 10^23.

To find how many moles, we divide the given sample by Avogadro's number.

(4.57 x 10^24) / (6.02 x 10^23) ≈ 7.59136

Using the amount of significant figures given (3), the answer is 7.59 moles of neon (Ne).

4 0
3 years ago
The melting of ice cream is an example of which of the following?
Rus_ich [418]
It is physical change because ? has changed alone not with chemicals
7 0
4 years ago
Read 2 more answers
Please help y’all I don’t understand
ycow [4]

Answer:

Both atoms achieve a more stable configuration

Explanation:

3 0
3 years ago
Read 2 more answers
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