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horsena [70]
3 years ago
15

What is the meaning of "Laser"

Chemistry
2 answers:
iVinArrow [24]3 years ago
8 0
<span>A device that generates an intense beam of coherent monochromatic light (or other electromagnetic radiation) by stimulated emission of photons from excited atoms or molecules. Lasers are used in drilling and cutting, alignment and guidance, and in surgery; the optical properties are exploited in holography, reading bar codes, and in recording and playing compact discs.</span>
Lena [83]3 years ago
8 0
It is actually an acronym that means "Light Amplification of Stimulated Emission of Radiation"
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How many grams of acetylene are produced by adding water to 5.00 g CaC2?
Murljashka [212]

Answer:

2.03125g of acetylene

Explanation:

First thing's first, we have to write out the balanced chemical equation;

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Water is in excess, so CAC2 is our limiting reactant. i.e it determines the amount of product that would be formed.

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In terms of mass;

Mass = Number of moles * Molar mass

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5g would produce x?

64 = 26

5 = x

Upon solving for x we have;

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