Question

After learning about chemical reactions, Olivia investigated different kinds of chemical changes using substances she found in her kitchen so she could see these changes. Which of the following can occur when a chemical reaction takes place? Choose the three statements that apply. A. New bonds form. B. Existing bonds break. C. New substances form. D. Changes don't affect matter.

Answer 1

In a chemical reaction, new substances are formed when existing bonds break and new bonds form. This leads to the creation of new substances with different properties from the reactants.

The correct options are A, B and C.

Step-by-step explanation:

In a chemical change, new substances are formed. In order for this to occur, the chemical bonds of the substances break, and the atoms that compose them separate and rearrange themselves into new substances with new chemical bonds. When this process occurs, we call it a chemical reaction. A chemical reaction is the process in which one or more substances are changed into one or more new substances.

Three statements that apply when a chemical reaction takes place are:

1. New bonds form: During a chemical reaction, the existing bonds in the reactants are broken and new bonds are formed in the products.
2. Existing bonds break: As the reactants undergo a chemical reaction, the existing bonds between their atoms break before new bonds are formed.
3. New substances form: The rearrangement of atoms and formation of new bonds during a chemical reaction results in the formation of new substances with different properties from the reactants.