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erma4kov [3.2K]
3 years ago
13

What is the 2nd most abundant element in the earths crust

Chemistry
1 answer:
Elza [17]3 years ago
3 0

Silicon is the second most abundant element in the Earth´s crust and makes up around 27% of it.

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What is the ionic charge for C, Si, Ge, Sn and Pb?
Alecsey [184]
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6 0
2 years ago
6
Vanyuwa [196]

Answer:

If the volume of a gas increased from 2 to 6 L while the temperature was held constant, <u><em>the  pressure of the gas decreased by a factor of 3.</em></u>

Explanation:

Boyle's law that says "The volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure." This means that if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases.

Boyle's law is expressed mathematically as:

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or

P * V = k

To obtain the proportionality factor k you must make the quotient:

k=\frac{V2}{V1} =\frac{6 L}{2 L}

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This means that <u><em>if the volume of a gas increased from 2 to 6 L while the temperature was held constant, the  pressure of the gas decreased by a factor of 3.</em></u>

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3 years ago
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