Law of conservation of mass

Front

What does the Law of Conservation of Mass say? "During a chemical reaction, mass is neither _______ or destroyed."

Back

created

Front

The substances that go into a reaction are called the _______.

Back

reactants

Front

According to the Law of Conservation of Mass, the mass of all the REACTANTS must __________ the mass of all PRODUCTS in a chemical reaction.

Back

equal

Front

True or False: A reactant is a substance present at the beginning of a chemical reaction.

Back

True

Front

In a chemical reaction, what is the product?

Back

A substance that is produced during a chemical reaction.

Front

Which of the following equations does not demonstrate the law of conservation of mass? 2Na + Cl₂ ➡️ 2NaCl, NaOH + HCl ➡️ NaCl + H₂0, P₄ + 5O₂ ➡️ 2P₄O₁₀

Back

P₄ + 5O₂ ➡️ 2P₄O₁₀

Front

The substances listed on the right side of a chemical equation are the

Back

Products

Front

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

Back

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

Front

How many Oxygen (O) atoms are in 2C₂HO₈C_l2?

Back

16

Front

How many Hydrogen (H) atoms are in NH₃O5?

Back

3