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Finger [1]
3 years ago
12

I need evidence and a justification that a chemical change/reaction has occured when water meets liquid nitrogen.

Chemistry
1 answer:
Ksju [112]3 years ago
3 0
Hhhhhhhhhhhhhhhhhhhhhhhhhh
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babymother [125]
The correct answer is c. solution
7 0
3 years ago
If the average atomic mass of hydrogen in nature is 1.0079, what does that tell you about the percent composition of H-1 and H-2
vovangra [49]

Answer:

That the isotope H-1 is the most abundant in nature.

Explanation:

Hello!

In this case, since the average atomic mass of an element is computed considering the mass of each isotope and the percent abundance each, for hydrogen we would set up something like this:

m_H=m_{H_1}*\%abund_{H_1}+m_{H_2}*\%abund_{H_2}

Moreover, since the isotope notation H-1 and H-2 means that the atomic mass of H-1 is 1 amu, that of H-2 is 2 amu and the average one is 1.0079 amu, we can infer that the most of the hydrogen in nature is H-1 as the most of it composes the average hydrogen atom.

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4 0
3 years ago
The picture represents the process that produces most of the energy used by living organisms on Earth. Which process is represen
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6 0
3 years ago
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Why is it necessary to add concentrated HCl, then water, rather than a solution of HCl to the eudiometer tube
Dmitry_Shevchenko [17]
The reaction between concentrated acid and water can release a lot of heat. If a little water is added to a larger amount of acid, the heat can cause the small amount of water to boil very rapidly which then spatters some acid. ... It is recommended that acid should be added to water and not water to acid.
8 0
3 years ago
What is the difference between a permanent change and a temporary change? What is
NikAS [45]

Answer:

temporary changes are the changes which are there only for a short period if time.

Explanation:

generally temporary changes are reversible. permanent changes are the changes which remain for a longer time and are not reversible

6 0
3 years ago
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