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 a coefficient in a chemical equation?

Back

A number placed before a compound in a chemical equation to indicate the number of molecules involved in the reaction.

Front

What is a subscript in a chemical formula?

Back

A small number written after an element symbol that indicates the number of atoms of that element in a molecule.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

What happens to the mass of wood when it burns?

Back

The mass stays the same, but it transforms into smoke and ash.

Front

What type of reaction is represented by the equation O3 → O• + O2?

Back

Decomposition reaction.

Front

How do you balance a chemical equation?

Back

By adjusting the coefficients of the reactants and products to ensure the same number of each type of atom on both sides.

Front

What is a synthesis reaction?

Back

A type of chemical reaction where two or more simple substances combine to form a more complex product.

Front

What is a decomposition reaction?

Back

A type of chemical reaction where a single compound breaks down into two or more simpler products.

Front

What is a single displacement reaction?

Back

A reaction where one element replaces another element in a compound.