Acids, Bases, & Ph

The smallest part of an element is

• proton

• atom

• compound

• mixture

Two or more different elements chemically combine to form compounds.

• True

• False

Tags

NGSS.MS-PS1-1

A combination of particles of one or more substance that are distributed uniformly throughout another substance is a/an

• Mixture

• Substance

• Solution

Which of the following are properties of acids?

• They conduct electricity when dissolved in water

• They taste sour

• They react with metals to produce hydrogen gas

• All of the answer choices are correct

Bases have many uses. They are mainly used to make

• cleaning products

• soaps

• concrete

• all of the answer choices

If the substance is neutral, what would the pH be?

• 3

• 5

• 7

• 9

• 11

Which is the stronger acid?

• pH 1

• pH 4

• pH 8

• pH 13

Tags

NGSS.MS-PS1-2

The strongest bases have pH values close to

• 0

• 14

• 7

• 5

If an acid is combined with a base of equal strength, the result will most likely be

• a neutral solution.

• a stronger acid.

• impossible to tell without testing the pH.

• a stronger base

Which of these pH values represent an acid?

• 4

• 8

• 10

• 12