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vivado [14]
3 years ago
14

Which substance is a diatoic molecule? A] He B] O2 C] CO2 D] H2O

Chemistry
1 answer:
PilotLPTM [1.2K]3 years ago
6 0
The substance that is a diatomic molecule is B. O2 Oxygen.
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Determine the overall energy change for the reaction between hydrogen and oxygen shown in Question 13. Use Figure 2.
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Explanation:

Data obtained from the question include the following:

Heat of reactant (Hr) = 800KJ

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Enthalphy change (ΔH) =..?

The enthalphy change is simply defined as the difference between the heat of product and the heat of reactant i.e

Enthalphy change = Heat of product – Heat of reactant

ΔH = Hp – Hr

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ΔH = Hp – Hr

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