Question

Which of the following statements is true about single-replacement reactions?
1)They are restricted to metals.
2)They involve a three products.
3)Both the reactants and products consist of an element and a compound.
4)Any metal replaces any other metal.

Answer 1

Explanation:

i think is, They involve a three products.

Answer 2

The statement which is true about single-replacement reactions are:

3) Both the reactants and products consist of an element and a compound.

Single-replacement reactions :

These reactions are also known as single displacement reactions, in this type, the ions of the metals or elements get exchanged with the other element and lead to the formation of a new product.

Example: $2K+2H_2O--- > 2KOH+H_2$

The ions of water get exchanged with potassium and form a new salt that is potassium hydroxide.

Thus, option 3 is correct.

Find more information about Single replacement reaction here:

brainly.com/question/15364304