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givi [52]
3 years ago
9

2.1 x 10^-3 x 2 x 10^2 =

Chemistry
1 answer:
Bumek [7]3 years ago
4 0

Answer:

I believe it is B

Explanation:

hope it helps. please let me know if it's wrong

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pH = - log [H+]
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2pH = - log (4.2×10^-13) - log [HPO4(2-)]
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8 0
3 years ago
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5 0
3 years ago
HI PLEASE HELP!!!!
Crazy boy [7]

Answer:

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8 0
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