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8 January, 16:40

What are examples of a chemical reaction?

Select all that apply.

A (2AgI + Na2S → Ag2S + 2NaI

B) 4FeS + 7O2 → 2Fe2O3 + 4SO2

C) H2O → SiO2

D) SnO2 → Sn + 2H2O

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Answers (1)
  1. 8 January, 17:12
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    A and B. note / a chemical reaction is either

    acid + base

    carbonate + base

    metal + base.
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