uzupełnij równania reakcji:
a) Ca+H2SO4-->.....+.....
b) CaO+H2SO4-->.....+.....
a) Ca + H2SO4 --> CaSO4 + H2
b) Cao + H2SO4 --> CaSO4 + H2O
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a) Ca + H2SO4 --> CaSO4 + H2
b) Cao + H2SO4 --> CaSO4 + H2O