mid term review part 1

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 the reactants equals the total mass of the products.

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients in front of the compounds to ensure that the number of atoms for each element is the same on both sides of the equation.

Front

What is a chemical reaction?

Back

A chemical reaction is a process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.

Front

What happens to atoms during a chemical change?

Back

During a chemical change, atoms rearrange themselves to form new substances, linking up in different ways.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or arrangement. It can be converted into kinetic energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It depends on the mass and speed of the object.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes a chemical change in a reaction, combining with other reactants to form products.

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

How do you identify the limiting reactant in a chemical reaction?

Back

The limiting reactant is the reactant that is completely consumed first in a chemical reaction, limiting the amount of product formed.

Front

What is the difference between an endothermic and exothermic reaction?

Back

An endothermic reaction absorbs energy (usually in the form of heat) from the surroundings, while an exothermic reaction releases energy to the surroundings.