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Wewaii [24]
3 years ago
13

How is the mass of a liquid substance affected after it freezes?

Chemistry
1 answer:
yan [13]3 years ago
8 0
<span>Atoms and molecules lost heat and come together, their motion slows down and distance between them decreases.</span>
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Consider the following balanced equation:
Serga [27]
<span>Zn⁰ + 2H⁺ ------> Zn²⁺ + H2⁰

H⁺ ion has oxidation number +1.
Zn²⁺ ion has oxidation number +2.
Atom of Zn has electric charge 0, and each hydrogen atom in the molecule H2 have oxidation number 0. So, </span> Zn and each hydrogen atom in H2 have oxidation numbers equals "0".<span>

</span><span>Answer is
D. Zn and each hydrogen atom in H2</span><span>

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4 0
4 years ago
Nitrogen gas consists of _____.
Anni [7]
Nitrogen gas consists of a diatomic nitrogen atom. So, the correct answer is B.
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3 years ago
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Do liquids have higher coefficients of expansion than solids do
zmey [24]

Answer: yes they do.

Explanation:

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3 years ago
Nitrogen (N2) and hydrogen (H2) react to form ammonia (NH3). Consider a mixture of six nitrogen molecules and six hydrogen molec
Nezavi [6.7K]

Answer:

a)  No molecules of hydrogen

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Explanation:

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