6.1 Chemical Reactions Quiz

What are the starting substances in a chemical reaction called?

• Products

• Reactants

• Catalysts

• Solvents

What are the new substances formed in a chemical reaction called?

• Products

• Reactants

• Catalysts

• Solvents

Which of the following is a clue that a chemical reaction may have occurred?

• A change in state

• A change in color

• A change in shape

• A change in size

What is the term for a substance that does not react easily?

• Reactive

• Unreactive

• Soluble

• Insoluble

Which of the following is an example of an unreactive substance?

• Oxygen

• Water

• Helium

• Carbon dioxide

What is a word equation?

• A balanced chemical equation

• A model showing the reactants and products in a reaction

• A description of the experimental procedure

• A list of the chemicals used in an experiment

In a word equation, where are the reactants written?

• On the left side of the arrow

• On the right side of the arrow

• Above the arrow

• Below the arrow

What does the arrow in a word equation represent?

• The direction of the reaction

• The equilibrium of the reaction

• The rate of the reaction

• The heat change of the reaction

What is the product of the reaction between magnesium and oxygen?

• Magnesium oxide

• Magnesium chloride

• Magnesium hydroxide

• Magnesium carbonate

What is the word equation for the reaction between sodium and chlorine?

• Sodium + chlorine → sodium chloride

• Sodium chloride → sodium + chlorine

• Sodium + water → sodium hydroxide + hydrogen

• Magnesium + oxygen → magnesium oxide