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Pie
3 years ago
9

How many electrons does a single hydrogen gain or lose in the following reaction? H2 + O2 - H20

Chemistry
1 answer:
nirvana33 [79]3 years ago
4 0

Answer:

One electron per single hydrogen atom.

Explanation:

Hello!

In this case, given the reaction:

H_2+O_2\rightarrow H_2O

Whereas we can identify the following half-reaction for hydrogen:

H_2^0\rightarrow H_2^+

Whereas we see that each single hydrogen atom gains one electron in order to go from 0 to +1, which is also related to an oxidation half-reaction.

Best regards!

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First we have to calculate the mass of water.

\text{Mass of water}=\text{Density of water}\times \text{Volume of water}

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Now we have to calculate the heat released on cooling.

Heat released on cooling = m\times c\times (T_2-T_1)

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Number of ice cubes melted = \frac{\text{Total heat}}{\text{Heat for 1 ice cube}}

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