A sample of pure water is neutral because it contains

equal amounts of hydroxide and hydrogen ions.

In a water solution, how do acids differ from bases?

Acids form hydrogen ions(H + ), while bases form hydroxide ions (OH - )

Acids turn litmus blue, while bases turn litmus red.

Acids form salts, but bases do not.

Hydrogen ions (H + )remain dissolved, by hydroxide ions (OH - ) do not.

Water is called the "universal solvent" because:

It is able to dissolve many different solutes

It dissolves only a few solutes

It is found everywhere in the universe

How can a scientist safely tell whether an unknown solution is salt in water or sugar in water?

By testing the electrical conductivity of the solution

Acid Bases pH Scale

Quiz

•

Chemistry

•

7th Grade

•

Practice Problem

•

Hard

•

NGSS

MS-PS1-5, MS-PS1-1, MS-PS1-2

+3

Standards-aligned

Charles Martinez

FREE Resource

50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In a neutralization reaction, what are the products of a reaction between an acid and a base?

Another acid and base

Carbon dioxide and a salt

Water and a salt

Either two acids or two bases

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Tastes bitter.

Acids

Bases

Salts

All

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Tastes Sour

Acids

Bases

Salts

All

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Feels slippery.

Acids

Bases

All

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Forms hydroxide ions in water

Acids

Bases

All

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

pH less than 7.

Acids

Bases

All

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

pH greater than 7.

Acids

Bases

All

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Acid Bases pH Scale

50 questions

In a neutralization reaction, what are the products of a reaction between an acid and a base?

Tastes bitter.

Tastes Sour

Feels slippery.

Forms hydroxide ions in water

pH less than 7.

pH greater than 7.

What is a solution that has an excess of hydroxide (OH-) ions?

Acids are found on the pH scale between which numbers?

An acid/base reaction always produces:

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