Unit 5 Study Guide

This type of change occurs when one or more new substances are formed.

• physical

• chemical

• intensive

• extensive

This is a beginning substance in a chemical reaction.

• product

• reactant

• chemical

• compound

Which of the following is not a characteristic of an acid?

• Tastes sour

• Have a bitter, soapy taste

• Some can burn through materials

• Feels sticky

True or False: Bases conduct electricity well.

• True

• False

What is the correct name for the compound with the molecular formula of H₂O?

• Hydrogen oxide

• Dihydrogen oxide

• Dihydrogen monoxide

• Hydrogen peroxide

Why is it important to balance an equation?

• to see what chemicals are used

• to determine the number of products

• to satisfy the law of conservation of mass

• to describe the reactants and products of a change

How many atoms represent a diatomic molecule?

• one

• two

• four

• eight

This change happens because a substance's identity does not change.

• physical

• chemical

• intensive

• extensive

A substance with a pH of 7 is considered:

• Acidic

• Neutral

• Basic

• Alkaline

This is one of the new substances formed in a chemical reaction.

• product

• reactant

• chemical

• compound