When the following equation is balanced, the coefficient of H2O is Ca(s) + H2O + Ca(OH)2 + H2 a) 2
1 answer:
Answer:
Explanation:
Given:
In a balanced chemical equation, the number of atoms of each element are equal on both sides.
No. of atoms of Ca in left hand side = 1
No. of atoms of Ca in right hand side = 1
So, no. of atoms of Ca is balanced
Now,
No. of atoms of O in left hand side = 1
No. of atoms of O in right hand side = 2
Now multiply H2O with 2
No. of atoms of O are balanced on each side
No. of atoms of H in left hand side = 4
No. of atoms of H in right hand side = 4
Now, each element is balanced
So coefficient of H2O after balancing = 2
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Answer:
Explanation:
Hello there!
In this case, since the vaporization process is carried out in order to turn a liquid into a gas due to the addition of heat, we can use the following heat equation involving the heat of vaporization of water or any other substance:
Thus, since this heat of vaporization for water is 2259.36 J/g, we plug in this amount to obtain the total energy for this process.
Which is positive due to the necessity of heat.
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