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Jobisdone [24]
3 years ago
5

How does a sample of helium at 15 °C compare to a sample of helium at 215 K?

Chemistry
1 answer:
Goshia [24]3 years ago
3 0

The answer is: The helium at 15 °C has a higher average kinetic energy than the sample at 215 K.

215 K is equivalent to -58.15 °C. Temperature is directly proportional to average kinetic enegry, so 15 °C has a higher average kinetic energy than the sample at -58.15 °C or 215K.

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An acid and a base react to form salt and water. Which of the following best describes this type of chemical reaction? Redox Neu
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Neutralization

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When an acid react with base it form the salt and  water. The reaction is also called neutralization reaction because both neutralize each other.

In neutralization reaction equal amount of acid and base react to neutralize each other and equal amount of water and salt are formed. When pH does not reach to 7 its means there is less amount of one of reactant which is not fully neutralize.

Neutralization reactions are also used as first aid. For example when someone is dealing with HCl for cleaning purpose of toilet and get touched. It is advised to neutralize it with soap, milk or egg white.

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Titration:

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What units are used to measure energy? A) volts B) angstroms C) centimeters D) joules
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What characteristic of an element’s atoms always determines the element’s identity?
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