Front

What is a substance?

Back

A substance is a form of matter that has a fixed composition and distinct properties.

Front

What are reactants in a chemical equation?

Back

Reactants are the starting materials in a chemical reaction, written to the left of the arrow in a chemical equation.

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, written to the right of the arrow in a chemical equation.

Front

What indicates that a chemical reaction has occurred?

Back

Certain proofs include changes in color, formation of bubbles, and changes in properties of the matter.

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.

Front

What happens to bonds during a chemical reaction?

Back

During a chemical reaction, bonds between atoms in reactants break, and new bonds form to create products.

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is a catalyst?

Back

A catalyst is a substance that speeds up a chemical reaction without being consumed in the process.

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.