Which two chemical equations show double-replacement reactions? A. C+02 – CO2 B. 2Li + CaCl2 – 2LiCl + Ca I C. Ca(OH)2 + H

Question

Which two chemical equations show double-replacement reactions?
A. C+02 – CO2
B. 2Li + CaCl2 – 2LiCl + Ca
I C. Ca(OH)2 + H2S04 – CaSO4 + 2H20
D. Na2CO3 + H2S – H2CO3 + Na2S

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Amity 1 year 2021-09-02T06:46:21+00:00 2 Answers 6 views 0

Answers ( )

  1. vankhanh
    0
    2021-09-02T06:47:42+00:00
    Reply

    The answers are C. and D. Hope this helps.

  2. Sapo1
    0
    2021-09-02T06:48:03+00:00
    Reply

    Answer:

    C. Ca(OH)2 + H2S04 – CaSO4 + 2H20

    D. Na2CO3 + H2S – H2CO3 + Na2S

    Explanation:

    A>P>E>X

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