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blagie [28]
3 years ago
7

How many significant figures are in the number 4.02 x 10^-9 ?

Chemistry
2 answers:
umka21 [38]3 years ago
6 0
3 cuz I’m smart and I know everything:)
Stolb23 [73]3 years ago
4 0

Answer:

3 sig figs

Explanation:

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Rank the following solutions in order of increasing acidity (least acidic to most acidic): I: [H3O+] = 1x10−5 II: [OH−] = 1x10−1
kozerog [31]

Answer: option C) II < III < I

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