AAD Law of Conservation of Mass

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. The total mass of reactants equals the total mass of products.

Front

How many atoms of nitrogen are in NH₃?

Back

1 nitrogen atom.

Front

In a chemical reaction, if reactant A has 5g and product C has 9g, how much does reactant B weigh?

Back

4g.

Front

How many oxygen atoms are in the chemical formula C₆H₁₂O₆?

Back

6 oxygen atoms.

Front

If an oreo cookie weighs 20 grams, how much do its crumbs weigh after being crushed?

Back

20 grams.

Front

How many hydrogen atoms are in 4H₂O?

Back

8 hydrogen atoms.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction.

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means ensuring that the number of atoms for each element is the same on both sides of the equation.

Front

What is the significance of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance involved in a reaction.