MCQOPTIONS
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| 1. |
What is the heat of reaction if the heat of combustion of products is 25 J and heat of combustion of reactants is 15 J? |
| A. | -5 J |
| B. | 5 J |
| C. | -10 J |
| D. | 10 J |
| Answer» D. 10 J | |