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3 years ago

Anatom that has lewer neutrons than protons and more electrons than protons is

Chemistry

1 answer:

Ludmilka [50]3 years ago

8 0

Answer:

a negative ion, and an isotope.

Explanation:

The perfect atom consists of an equal balance in all 3. If the neutrons are not even with the protons, it is an isotope since it is like another version of the so called (but not actually) 'perfect' atom. If there is more electrons, the charge is negative, making it an ion.

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konstantin123 [22]

Answer:its b 7

Explanation:

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Answer:

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Explanation:

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What is ΔrH° for the following phase change? LiCl(s) → LiCl(l)

Yanka [14]

Answer:

$\Delta _rH=17.51\frac{kJ}{mol}$

Explanation:

Hello!

In this case, since the enthalpy change for any process is computed by subtracting the enthalpy of the final state and the enthalpy of the initial state, for the given phase change, we subtract the enthalpy of the liquid (final state) and the enthalpy of the solid (initial state) considering this a melting process:

$\Delta _rH=-390.76\frac{kJ}{mol} -(-408.27\frac{kJ}{mol} )\\\\\Delta _rH=17.51\frac{kJ}{mol}$

Which makes sense because this process absorbs energy.

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