(Q2-2023) Benchmark Review

Front

What happens to atoms during a chemical reaction?

Back

Atoms separate, rearrange, and new bonds form.

Front

What is an exothermic reaction?

Back

A reaction in which more energy is released by the products than is absorbed by the reactants.

Front

What type of structure is an extended structure?

Back

An extended structure is a type of arrangement of atoms in a solid where they are bonded in a repeating pattern.

Front

How many oxygen atoms are in the products if the reaction produces four oxygen atoms?

Back

There will be four oxygen atoms in the products.

Front

How do the properties of a product compare to its reactants?

Back

The product will have new properties that differ from the reactants.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction.

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

What is the law of conservation of mass?

Back

The law states that mass is neither created nor destroyed in a chemical reaction.

Front

What is an endothermic reaction?

Back

A reaction in which energy is absorbed from the surroundings.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.