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Tpy6a [65]
3 years ago
13

What is the ralio of Sr + ions to Brions in a neutral compound?

Chemistry
1 answer:
zhenek [66]3 years ago
8 0

Answer:

1:2

Explanation:

In neutral compound the negative and positive charges are always equal. Thus cancel the effect of each other and make the compound over all neutral.

The compound made by strontium and bromine is given below.

SrBr₂

It is known that  halogens atom gain one electron to complete the outer most valance shell and usually show -1 oxidation state.

(x) + 2(-1) = 0

x + (-2) = 0

x -2 = 0

x = +2

The oxidation sate of strontium is +2 and bromine is -2 thus make the compound overall neutral.

Sr⁺²  Br⁻¹

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3 years ago
Which of the following contains the same number of electrons as an atom of neon?
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D. O^{2-}

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4 0
2 years ago
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Answer:

23.2 mols

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(23.2 mol H2)(2 mol H2O) /(2 mol H2) = 23.2 mol H2O

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this answer makes sense because as you can see in the equation, there are 2 H2:2 H2O, so the amounts should be the same.

hope this helps! make sure to practice because it is ESSENTIAL that you understand this, especially if you plan on taking ap chem. good luck! :)

6 0
3 years ago
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