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Veseljchak [2.6K]
3 years ago
10

Choose the statement that best completes the sentence.

Chemistry
2 answers:
Darina [25.2K]3 years ago
4 0
The collisions of the molecules
Kipish [7]3 years ago
4 0

Answer: Option (b) is the correct answer.

Explanation:

In solids, the force of attraction are strong therefore, there will be no collision between the particles.

In liquids, there will be less force of attraction between the molecules therefore, there will be collisions between the molecules.

In gases, as there is no force of attraction between the molecules therefore, there will be more collisions.

Thus, we can conclude that whether a substance is a gas, liquid, or solid is dependent on the natural attractive forces between molecules and the collisions between the molecules.

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Solution A has twice as much solute as solution B is it possible for the solutions to have the same concentration
pishuonlain [190]
Yes. As long as the ratio of solute and solvent is same for both solution, the solution has the same concentration. for example, solution A has 2 ml of water, and 1 ml of sucrose. Solution B has 4ml of water and 2ml of sucrose. Both has a ratio of water to sucrose by 2 : 1. they have the same concentration of 50% sucrose. 
5 0
4 years ago
How do I calculate the molecular weight of Mg(OH)2?
vodomira [7]

The molecular weight of Mg(OH)2 : 58 g/mol

<h3>Further explanation</h3>

Given

Mg(OH)2 compound

Required

The molecular weight

Solution

Relative atomic mass (Ar) of element : the average atomic mass of its isotopes  

Relative molecular weight (M)  : The sum of the relative atomic mass of Ar  

M AxBy = (x.Ar A + y. Ar B)  

So for Mg(OH)2 :

= Ar Mg + 2 x Ar O + 2 x Ar H

= 24 g/mol + 2 x 16 g/mol + 2 x 1 g/mol

= 24 + 32 + 2

= 58 g/mol

5 0
3 years ago
39. Consider the following molecules:
sweet [91]
I) cc14
ii) h20
iii) i’m not sure

not fully sure but hope this helps!
5 0
3 years ago
Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in the following electron transfe
babunello [35]

Answer:

Oxidized and reducing agent: manganese.

Reduced and oxidizing agent: mercury.

Explanation:

Hello!

In this case, for the reaction:

Hg^{2+}(aq) + Mn^0(s)\rightarrow Hg(s) + Mn^{2+}(aq)

We keep in mind that the species that increase the oxidation state is the oxidized one whereas the one that decrease the oxidation state is the reduced one; therefore manganese is the oxidized one as well as the reducing agent because it goes from 0 to +2 and mercury the reduced one as well as the oxidizing agent because it goes from 2+ to 0.

Best regards

6 0
3 years ago
What was formed when you dropped the rock to the sand?
castortr0y [4]

Answer: 1. rock stone gase from developing the other difference

6 0
3 years ago
Read 2 more answers
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