Which of the following pH numbers are acidic? (Choose 2) 9 11 7 5 3

Question

Which of the following pH numbers are acidic? (Choose 2)
9
11
7
5
3

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Thái Dương 4 years 2021-07-28T07:08:03+00:00 1 Answers 6 views 0

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    2021-07-28T07:09:54+00:00

    the pH numbers that are acidic above is 3 and 5

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )