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3 years ago

In a chemical reaction, the reactants contain 385 kJ of chemical energy, and the products contain 366 kJ of chemical energy.

2 answers:

7 0

In order for energy to be conserved 19 KILO JOULE OF ENERGY MUST BE RELEASED AS HEAT.
In chemical reactions, energy is always conserved. In the question given above, there is a difference of 19 kj in the energy quantity between the reactants and the products. The reactants has more energy than the products, this excess energy is given off as heat during the reaction.

andrezito [222]3 years ago

6 0

Answer: 19kJ of energy must be released

Explanation:

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3 years ago

Oxygen gas is collected over water. The total pressure (the O2 pressure the water vapor pressure) is 736 torr. The temperature o

tigry1 [53]

Answer:

The value of the partial pressure of the oxygen $P_{O_{2} }$ = 690 torr

Explanation:

Total pressure of the mixture of gases = 736 torr

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Put the values of pressures in above equation we get,

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