Chemical Reactions

Front

What is a chemical reaction?

Back

A process where reactants transform into products, involving the breaking and forming of chemical bonds.

Front

What is the Law of Conservation of Mass?

Back

Matter cannot be created or destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

How do you balance a chemical equation?

Back

By ensuring the number of atoms for each element is the same on both sides of the equation.

Front

What is a reactant?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product?

Back

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

Front

What does the coefficient in a chemical equation represent?

Back

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

Front

How many atoms are in one molecule of water (H2O)?

Back

There are 3 atoms: 2 hydrogen (H) and 1 oxygen (O).

Front

What is the difference between an ionic bond and a covalent bond?

Back

An ionic bond involves the transfer of electrons between atoms, while a covalent bond involves the sharing of electrons.

Front

What is a mole in chemistry?

Back

A unit that measures the amount of substance, equivalent to 6.022 x 10^23 particles.

Front

How many sodium (Na) atoms are in 3Na2SO4?

Back

There are 6 sodium (Na) atoms.