Free Printable Unit 9 Acids and Bases

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Unit 9 Acids and Bases

Total questions: 15

Worksheet time: 11mins

Name

Class

Date

Explain what happens when a strong acid and a strong base are poured into the same container.

they form separate layers

they mix physically but not chemically

they break apart into separate elements

they react chemically to form a salt

When dissolved in water, bases produce:

acids

salts

hydrogen ions

hydroxide ions

Which statement is true when acids and bases are mixed together?

acids become stronger

bases become stronger

there is no change

they neutralize each other

When dissolved in water, acids produce:

bases

salts

hydrogen ions

hydroxide ions

A neutralization reaction will (almost) always produce...

water & salt

water

salt

water & carbon

Identify the salt in the following equation:
Zn(OH)₂ + HNO₃ ---> H₂O + Zn(NO₃)₂

Zn(OH)₂

HNO₃

H₂O

Zn(NO₃)₂

Complete the following reaction:

HCl + Mg(OH)₂ -->

MgCl₂ + H₂O

Mg +H₂O

MgCl₂ + H₂

MgCl₂ + H₂O + CO₂

Forms hydroxide ions (OH^-) in water

Acids

Bases

All

If there is excess hydrogen ions, the solution will be...

acidic

basic

10.

If there is excess hydroxide ions, the solution will be...

acidic

basic

11.

NaCl is a ...

acid

base

salt

water

12.

How can you identify an acid when analyzing a chemical equation?

acid formulas have OH

acid formulas begin with H cations

acid formulas contain at least 1 hydrogen

acid formulas end with OH

13.

How can you identify a salt when analyzing a chemical reaction?

a salt only contains cations

It always contains Na+ and Cl- ions

any metal cation combined with a nonmetal anion

a salt always has OH- ions

14.

How can you identify a base when looking at the chemical formula?

bases contain hydroxide ions

bases contain hydrogen ions

bases do not have ammonia

bases have oxygen in their formula

15.

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Unit 9 Acids and Bases

Total questions: 15

Worksheet time: 11mins

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