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kirza4 [7]
3 years ago
13

Which of the following are cations? Select all that apply.

Chemistry
1 answer:
miskamm [114]3 years ago
3 0

Answer:

Mg2+

NH4+

are cations because of there positive charge

Explanation:

-He is a noble gas and have no formal charge therefor it is not a cation

-cl- and o2- have a negative formal charge so they are called anion

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To find the mass you need to find the weight of a mol of the molecules by adding up the atomic mass.

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2(14.007) + 8(1.008) + 32.065 + 4(16) = 132.143 g/mol

Now you know how much an entire mol weight you multiply it by how much you actually have 

0.00456 * 132.143 = 0.603 g
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Answer:

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Please read the explanation.

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