Chemical and physical changes

Front

the starting materials in a chemical reaction

Back

Reactants

Front

a substance that is formed as the result of a chemical reaction

Back

Product 

Front

What are the products of the chemical reaction pictured?

Back

CO₂ and H₂O

Front

In the chemical equation CH₄ + 2 O₂ → CO₂ + 2 H₂O, CH₄ is a

Back

reactant

Front

What is the left part of a chemical equation called?
H_{2 +} O → H₂O

Back

Reactants

Front

2H₂ + O₂ ----> 2H₂O What is the product?

Back

2H₂O

Front

Identify the reactant(s) and product(s) of the reaction.

Back

Hydrogen and oxygen are the reactants, and water is the product.

Front

The reactants are on the left side of the chemical equation.

Back

True

Front

Identify the change shown in the picture.

Back

Irreversible chemical change

Front

Which of the following is an example of physical change? burning of wood, photosynthesis, melting of ice-cream, ripening of fruit

Back

melting of ice-cream