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Trava [24]
3 years ago
11

10. In which of the following is the symbol for the ion and the total number of electrons it contains given correctly?

Chemistry
1 answer:
dalvyx [7]3 years ago
5 0

Answer:

10. D

9. A

8. A or B

Explanation:

10. Calcium has 20 electrons, but the Calcium ion has 18 electrons.

9. The mass of electrons are negligible.

8. Electrons have a very small mass where some consider it to have no mass.

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2 Na + Cl2 --&gt; 2 NaCl<br> What is the mole ratio of sodium to sodium chloride?
Irina18 [472]

Answer: The mole ratio of sodium to sodium chloride 2:2.

Explanation:

As the given reaction equation is as follows.

2Na + Cl_{2} \rightarrow 2NaCl

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2 years ago
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kirill115 [55]

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3 years ago
Which method can be used to separate the components of a solution? Check all that apply.
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