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expeople1 [14]
2 years ago
12

Balance the following reaction:

Chemistry
1 answer:
NeX [460]2 years ago
8 0

Answer:

3 Ca(OH)2 + 2 K3PO4 ---> Ca3(PO4)2 + 6 KOH

Explanation:

Just balance each atom on both sides.

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A student is learning about a particular chemical element. The element is a metal that readily forms ionic salts with nonmetals
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Group 2

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Because group 2 is very reactive and forms salts with other non metals. Example Calcium Chloride. Calcium is from group 2, forms ionic salts with other non metal, and exists as solid at standard temp and pressure.

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Describe what subatomic particle is involved in light emission.
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Answer:

Option C= light is emitted as electron falls from the excited state to the ground state releasing a photon.

Explanation:

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Electron:

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Symbol= e-

Mass= 9.10938356×10⁻³¹ Kg

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Excitation:

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De-excitation:

When the excited electron fall back to the lower energy levels the energy is released in the form of radiations. this energy is exactly equal to the energy difference between the orbits. The characteristics bright colors are due to the these emitted radiations. These emitted radiations can be seen if they are fall in the visible region of spectrum.

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What happens when the pressure of gas is lowered
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its volume will increase

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