Law of conservation of mass

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that during a chemical reaction, mass is neither created nor destroyed.

Front

What are the reactants in the combustion of methane (CH4)?

Back

The reactants are CH4 and 2 O2.

Front

How many hydrogen atoms are present in NH3O5?

Back

There are 3 hydrogen atoms in NH3O5.

Front

What is the total mass of water produced from 4 grams of hydrogen and 32 grams of oxygen?

Back

The total mass of water produced is 36 grams.

Front

How many oxygen atoms are in the compound 2C2HO8Cl2?

Back

There are 16 oxygen atoms in 2C2HO8Cl2.

Front

What happens to the mass of reactants during a chemical reaction according to the Law of Conservation of Mass?

Back

The mass of reactants remains equal to the mass of products.

Front

If 10 grams of reactants are used in a reaction, what will be the mass of the products?

Back

The mass of the products will also be 10 grams.

Front

What is the significance of balancing chemical equations in relation to the Law of Conservation of Mass?

Back

Balancing chemical equations ensures that the mass of reactants equals the mass of products, reflecting the Law of Conservation of Mass.

Front

In a chemical reaction, if 5 grams of A reacts with 10 grams of B, what is the total mass of the products?

Back

The total mass of the products will be 15 grams.

Front

What is the formula for calculating the total mass of products in a chemical reaction?

Back

Total mass of products = mass of reactants.