Question

Which statement best describes an oxidation-reduction reaction.

Answer 1

1. The correct statement that describes a Redox reaction is ( D ) ; A chemical reaction in which electrons are transferred between reactants.

2. The chemical formula that shows the correct subscripts is ( D ) BeF₂

3. The type of reaction that is shown is ; ( C ) decomposition reaction

A Redox reaction ( oxidation-reduction reaction ) involves the exchange/transfer electrons between reactants and the change in the oxidation number of the molecules involved in the reaction changes when an electron is either gained or lost.

Given that the Be has four ( 4 ) electrons and Fluorine has nine ( 9 ) electrons when they combine Fluorine will be left with an excess of electrons therefore the correct chemical formula will be BeF₂

The breaking up of an element into its smaller parts in a chemical reaction is known as a decomposition reaction.

Answer 2

The whole Oxidation Reduction Reaction Model Quick Check is

1) C. a chemical reaction in which electrons are transferred between reactants

2) B. BeF2

3) C. decomposition

4) D. lithium (Li)

5) B. carbon dioxide and water