A-LevelChemistryGroup 29701/12 · May/June 2023 · Q201 Mark
The table compares calcium with barium and calcium carbonate with barium carbonate. Which row is correct?
Abarium is more reactive barium carbonate is more stable
Bbarium is more reactive calcium carbonate is more stable
Ccalcium is more reactive barium carbonate is more stable
Dcalcium is more reactive calcium carbonate is more stable
✓ Correct answer
A: barium is more reactive barium carbonate is more stable
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