Question

2CaO + 2H2O → Ca(OH)2

Which of the following statements explains why the equation is not balanced?

Four molecules of Ca(OH)2 should be produced during the decomposition reaction.
Two molecules of Ca(OH)2 should be produced during the decomposition reaction.
Four molecules of Ca(OH)2 should be produced during the synthesis reaction.
Two molecules of Ca(OH)2 should be produced during the synthesis reaction.

Answer 1

Answer:

Balance the reaction: Cr(OH)3 + (IO3)-1 = I-1 + (CrO4)-2 (in basic medium)

Explanation:

Four molecules of Ca(OH)2 should be produced during the decomposition reaction.

Two molecules of Ca(OH)2 should be produced during the decomposition reaction.

Four molecules of Ca(OH)2 should be produced during the synthesis reaction.

1. Two molecules of Ca(OH)2 should be produced during the synthesise reaction.

Answer 2

Answer: The last one is the answer, which is the two molecules of Ca(OH)2 should be produced during the synthesis reaction.

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