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Artyom0805 [142]
3 years ago
7

How many electrons are in the outermost energy shell of a calcium atom

Chemistry
1 answer:
kramer3 years ago
5 0
There are 2 on the outer shell
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Ca²⁺ + 2 OH⁻ → Ca(OH)₂(s)

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In chemistry, the net ionic equation is a way to write a chemical reaction whereas you write only the ions that are involved in the reaction.

When calcium chloride, CaCl₂ reacts with sodium hydroxide, NaOH to produce Ca(OH)₂ the only ions involved in the reaction are Ca²⁺ and OH⁻, thus, the balanced net ionic equation is:

<em>Ca²⁺ + 2 OH⁻ → Ca(OH)₂(s)</em>

<em>Cl⁻ and Na⁺ are not involved in the reaction and you don't have to write them.</em>

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