Which factor is generally responsible for high melting points?

Chemistry

2 answers:

nikdorinn [45]3 years ago

8 0

Answer: Option (A) is the correct answer.

Explanation:

Melting point is defined as the point where a solid substance starts to convert into a liquid state.

For example, ice starts to melt at a temperature above 0 degree celsius.

More strong is the intermolecular forces of attraction present in a substance more will be the heat required by it to break the bonds between its particles. So, that its state can be changed.

For example, a solid substance required more heating as compared to a liquid substance to change its state.

Thus, we can conclude that high intermolecular forces of attraction is generally responsible for high melting points.

vlabodo [156]3 years ago

7 0

A. High intermolecular forces of attraction. If there are high intermolecular forces, the molecules will need large energies to escape into the liquid. The substance will nave a high melting point.

The other options are incorrect because they are weak forces. They would cause low melting points.

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How many grams of CO2 are produced if 2.09 moles of hydrochloric acid are reacted with

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Answer:

The molar mass of CO2 = 44.01 g/mol

Explanation:

Start with 2.09 moles of HCl and convert to moles of CO2 For every 2 moles of HCl used, 1 mole of CO2 is formed.

2.09 mol HCl •(1 mol CO2/2 mol HCl) = 1.045 mol CO2

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