Question

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

Answer 1

A and B. note/ a chemical reaction is either

acid + base
carbonate + base
metal + base.