Balancing and Reaction Types

Front

What is the process of balancing a chemical equation?

Back

Balancing a chemical equation involves adjusting the coefficients of reactants and products to ensure that the number of atoms for each element is the same on both sides of the equation.

Front

What is a coefficient in a chemical equation?

Back

A coefficient is a number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.

Front

What is a subscript in a chemical formula?

Back

A subscript is a small number written to the right of an element symbol in a chemical formula that indicates the number of atoms of that element in a molecule.

Front

What type of reaction is represented by the equation: A + B → AB?

Back

This is a synthesis reaction, where two or more reactants combine to form a single product.

Front

What type of reaction is represented by the equation: AB → A + B?

Back

This is a decomposition reaction, where a single compound breaks down into two or more simpler products.

Front

What is a combustion reaction?

Back

A combustion reaction is a chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat.

Front

What is a single replacement reaction?

Back

A single replacement reaction is a type of chemical reaction where one element replaces another element in a compound.

Front

What is a double replacement reaction?

Back

A double replacement reaction is a type of chemical reaction where the anions and cations of two different compounds exchange places, forming two new compounds.

Front

How do you determine the number of atoms in a molecule?

Back

To determine the number of atoms in a molecule, add the subscripts of each element in the chemical formula.

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.