2 is the significant figure in 0.025
Answer:
First you multiply the number of atoms by the atomic mass of the element.This gives you the molar mass. Then you divide the molar mass by the number of grams in order to find the number of moles.
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Answer:
Explanation:
⁵⁹₂₆Fe --------- ⁰₋₁e + ⁵⁹₂₇Co
Co- 59 is known as Cobalt
its symbol is ⁵⁹₂₇Co
Answer : The average kinetic energy is,
Explanation :
The formula for average kinetic energy is:
where,
k = Boltzmann’s constant =
T = temperature =
Now put all the given values in the above average kinetic energy formula, we get:
Therefore, the average kinetic energy is,
It's b. hydrogen bonds between water molecules