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Arte-miy333 [17]
3 years ago
7

(a)² + (b)² = ? help please​

Chemistry
1 answer:
spayn [35]3 years ago
3 0

answer:

a^2+b^2= (a+b)² -2ab

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Please help me with this. (: I'd appreciate it.
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Answer:

The answer to your question is:  ΔH = -283 kJ/mol, first option

Explanation:

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3 years ago
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The symbol P is for phosphorus having atomic number 15. That means it has 15 protons and 15 electrons in its neutral state.

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3 years ago
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Answer:

hope you like and pls follow me

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7 0
2 years ago
2(3a-3)-2(a-2)=3<br>thank you ​
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Answer:

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hope that helps ✌

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