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denis23 [38]
3 years ago
14

!!!!!PLEASE HELP!!!!!

Chemistry
1 answer:
ollegr [7]3 years ago
3 0

Answer:

Difference in the potential energy of the reactants and products

Explanation:

 

The products have a lower potential energy than the reactants, and the sign of ΔH is negative. In an endothermic reaction, energy is absorbed. The products have a higher potential energy than the reactants, and the sign of ΔH is positive.

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A flask with a volume of 125.0 mL contains air with a density of 1.228 g/L. What is the mass of the air contained in the flask?
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A substance's density is defined as its mass per unit of volume. Density is most frequently represented by the symbol, however Latin letter D may also be used. Mass divided by volume is the formula for density in mathematics: ρ = M/V. where m is the mass, V is the volume, and ρ is the density.

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brainly.com/question/6107689

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