Chemistry, 04.01.2020 00:31 karnun1201

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1. which of the following is an essential condition for a redox reaction?

the reactants should be two elements.
the reactants should be two compounds.
the oxidation state of all the atoms should change.
the oxidation state of at least two atoms should change.

2. the reactant side of a balanced chemical equation is shown below.

c3h8 + 5o2 →

how many oxygen atoms should there be on the product side in the equation?

2
5
7
10

Answers: 2

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