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gladu [14]
3 years ago
9

Which of the following converts mechanical energy to electrical energy?

Chemistry
1 answer:
Dmitry [639]3 years ago
3 0

Answer:

an electrical generator

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The standard enthalpy of formation of Ca2+ (g) (∆H = 1934 kJ/mol)
Alex73 [517]

Answer:

see explanation

Explanation:

The process of ionization to produce cations is endothermic. For formation of Ca⁺² two ionization steps need be illustrated as follows...

1st ionization step: Ca° + 590Kj => Ca⁺ + e⁻

2nd ionization step: Ca⁺ + 1151Kj => Ca⁺² + e⁻

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Net Ionization Rxn: Ca° + 1741Kj => Ca⁺² + 2e⁻

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charge of the molecule = 2 · (3+) + 3 · (-2).

charge of the molecule = 0.

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On a graph , which type of line shows a direct proportion?
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