Match the term with its description.

Chemistry

2 answers:

noname [10]2 years ago

6 0

Answer:

An acid is a compound that increases hydrogen ions (H+) when it is dissolved in a solution.

The term alkaline is related to compound that increases the hydroxide ions (OH−) when it is dissolved in a solution.

pH refers to a value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water

An ion is an atom or molecule that has a positive or negative charge.

Explanation:

eduard2 years ago

3 0

Answer:

Acid A) A compound that increases hydrogen ions (H+) when it is dissolved in a solution.

Alkaline B)A compound that increases the hydroxide ions (OH−) when it is dissolved in a solution.

pH C) value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water.

Ion D) n atom or molecule that has a positive or negative charge.

Explanation:

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If a hydrogen atom and a helium atom have the same kinetic energy:________

Nuetrik [128]

Answer: If a hydrogen atom and a helium atom have the same kinetic energy then the wavelength of the hydrogen atom will be roughly equal to the wavelength of the helium atom.

Explanation:

The relation between energy and wavelength is as follows.

$E = \frac{hc}{\lambda}\\$

This means that energy is inversely proportional to wavelength.

As it is given that energy of a hydrogen atom and a helium atom is same.

Let us assume that $E_{hydrogen} = E_{helium} = E'$ . Hence, relation between their wavelengths will be calculated as follows.

$E_{hydrogen} = \frac{hc}{\lambda_{hydrogen}}$ ... (1)

$E_{helium} = \frac{hc}{\lambda_{helium}}$ ... (2)

Equating the equations (1) and (2) as follows.

$E_{hydrogen} = E_{helium} = E'\\\frac{hc}{\lambda_{hydrogen}} = \frac{hc}{\lambda_{helium}} = E'\\\lambda_{helium} = \lambda_{hydrogen} = E'$

Thus, we can conclude that if a hydrogen atom and a helium atom have the same kinetic energy then the wavelength of the hydrogen atom will be roughly equal to the wavelength of the helium atom.

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DaniilM [7]

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