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lianna [129]
4 years ago
12

Both the freezing temperature and the melting temperature of water are the same(0°C). Explain why a substance like water freezes

and melts at the same temperature.
Chemistry
1 answer:
Ahat [919]4 years ago
5 0
It is approximately 0. It could be barley higher or lower for both. You have to take the altitude into consideration. 
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snow_tiger [21]

Answer : The expression for reaction quotient will be :

(1) Q_c=\frac{[SO_2][HF]^4}{[SF_4]}

(2) Q_c=\frac{[O_2]^2[Xe]}{[XeF_2]}

Explanation :

Reaction quotient (Q_c) : It is defined as the measurement of the relative amounts of products and reactants present during a reaction at a particular time.

(1) The given balanced chemical reaction is,

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In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.  So, the expression for reaction quotient will be :

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(2) The given balanced chemical reaction is,

2MoO_2(s)+XeF_2(g)\rightarrow 2MoF(l)+Xe(g)+2O_2(g)[/texIn this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.  So, the expression for reaction quotient will be :[tex]Q_c=\frac{[O_2]^2[Xe]}{[XeF_2]}

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Hypothesis and Data Collection Part A The image shows three different liquids: water, water with salt, and vinegar. The pH of ea
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your answer is c. two atoms of oxygen.

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Answer:

none of them are equal to one mole

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Select the correct terms to complete the statement:
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For a liquid to freeze, energy must be <u>removed from</u> the system.

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