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igor_vitrenko [27]
3 years ago
5

How many valence electrons does calcium want to gain or lose to have a full outer shell?

Chemistry
2 answers:
klemol [59]3 years ago
8 0

Explanation:

calcium has 2 valence electrons

grandymaker [24]3 years ago
4 0

Explanation:

For example, Identify the number and type of ions formed in a reaction of calcium and carbon. Step 1: Determine the number of valence electrons for each element and whether the element loses or gains electrons. Calcium has 2 valence electrons and is a metal so it will give up two electrons.

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Answer:

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6 0
1 year ago
Suppose you titrate 80.0 mL of 2.00 M NaOH with 20.0 mL of 4.00 M HCl. What is the final concentration of OH− ions.
Likurg_2 [28]
Total volume = 80 mL + 20 mL = 100 mL = 0.10 L. 

NaOH + HCl ----> NaCl + H2O. 

0.08 L * 2.00 mol NaOH/L = 0.16 moles NaOH. 

0.02 L * 4.00 mol HCl/L = 0.08 moles HCl. 

0.16 - 0.08 = 0.08. There are 0.08 moles NaOH XS. 

0.08 moles NaOH produces 0.08 moles OH-. 

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4 0
3 years ago
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