Which is a correct step in a scientific experiment involving acids and bases? a) Mixing two acids to form a neutral solution. b)

Question

Which is a correct step in a scientific experiment involving acids and bases?
a) Mixing two acids to form a neutral solution.
b) Using an indicator to measure the hydrogen ion concentration of a solution.
c)Pouring acid onto an indicator to measure the pH of the indicator.
d) Dissolving an indicator in an acidic solution to increase its pH.

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Hưng Khoa 6 months 2021-07-17T07:33:18+00:00 1 Answers 7 views 0

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    2021-07-17T07:34:36+00:00

    Answer:

    b) using an indicator to measure the hydrogen ion concentration of a solution

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