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belka [17]
3 years ago
8

How many atoms are in 169g of calcium?

Chemistry
1 answer:
uysha [10]3 years ago
5 0
The answer is 6.022• 10^23 atoms

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3<br>Solve and derive the unit for Power​
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Answer:

Unit of power is watt

Explanation:

Power = rate of doing work

or

Power, P = W/t

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W is work done and t is time

The unit of work done is Joules and that of time is seconds.

Power, P = J/s

We know that, J/s = watts

Hence, the unit of power is watts.

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The quantity of heat required to change the temperature of 1 g of a substance by 1⁰c is defined as
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Specific heat is the quantity of heat required to change the temperature of 1 gram of a substance by 1 degree Celsius. It is the amount per unit mass that is required to raise the temperature by one degree Celsius. Every substance has its own specific heat and each has its own distinct value. The units of specific heat are joules per gram-degree Celsius (J/f C) and sometimes J/Kg K may also be used.
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expeople1 [14]

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lack of snow in the mountains makes drought cycles worse because mountains are a natural part of the water cycle.

Explanation:

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Why were foreigners allowed to hold office for the Mongols
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