Which of the following chemical reactions produces water via a synthesis reaction? a 2H2 + O2 + 2H2O b NaOH + HCI – NaCl +

Question

Which of the following chemical reactions produces water via a
synthesis reaction?
a 2H2 + O2 + 2H2O
b NaOH + HCI – NaCl + H2O
C CuO + H2 – Cu + H2O
d H2CO3 → CO2 + H2O

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Kiệt Gia 6 months 2021-07-11T12:38:53+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-07-11T12:40:12+00:00

    Answer:

    Should be A, but also I think there should be an arrow between O2 and 2H2O

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