He set up his periodic table by the atomic mass
Answer: Balanced equation that is formed by combining these two half reactions is
.
Explanation:
A chemical equation which contains same number of atoms on both reactant and product side is called a balanced chemical equation.
For example, 

On cancelling the common species from both these half-reactions, the complete balanced equation will be as follows.
Thus, we can conclude that balanced equation that is formed by combining these two half reactions is
.
D. A metal such as copper, because its atom have very mobile electrons - A-p-e-x verified!
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Answer by YourHope:
Hi! :)
Which definition of "coarse" matches its use in the phrase "coarse focus?"
A) "rough in texture"
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Melting is an example of phase change