2 years ago

Which statement correctly describes an endothermic chemical reaction?

1 answer:

7 0

An endothermic chemical reactions products tend to have a higher potential energy than the reactants. Thus making the /\ H positive, not negative.

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-Dominant- [34]

I think it is collumn

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2 years ago

bulgar [2K]

Answer:Five Characteristics of a Mineral

Minerals Are Natural. You must find minerals in nature; substances concocted in laboratories don't qualify. ...

Minerals Are Inorganic. ...

Minerals Are Solids. ...

Definite Chemical Composition. ...

Crystalline Structure.

Explanation:

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omeli [17]

Solid liquid gas. .

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2 years ago

Softa [21]

Yes the answer is iconic

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Stels [109]

Answer:

80 liters

Explanation:

At STP, 1 mole of ideal gas has a volume of 22.4 liters.

Therefore, since liters and moles are directly proportional, we can use stoichiometry directly.

40L CH₄ × (2L H₂ / 1L CH₄) = 80L H₂

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2 years ago