Acids and Bases

Question 1

What is an acid?

Answer 1

a substance that releases hydrogen ions into aqueous solutions.

Question 2

What is an aqueous solution?

Answer 2

Containing water.

Question 3

Formula for hydrochloric acid is?

Answer 3

HCl

Question 4

Name 3 properties of acids?

Answer 4

Corrosive, sour taste, turns blue litmus paper red, reacts with some metals, conduct electricity, neutralised by bases.

Question 5

What are molecular compounds?

Answer 5

Acids.

Question 6

What ARE acids?

Answer 6

Molecular compounds

Question 7

Formula for Nitric Acid is?

Answer 7

HNO3

Question 8

How do you determine the strength of the acid?

Answer 8

Depends on how many hydrogens are released

Question 9

Formula for sulfuric acid is?

Answer 9

H2SO4

Question 10

What acid is found in lemons?

Answer 10

Citric acid

Question 11

What acid is vinegar?

Answer 11

Ethanoic acid

Question 12

What acid is found in milk?

Answer 12

Lactic acid

Question 13

What is a base?

Answer 13

Releases hydroxide ions

Question 14

What is an alkali?

Answer 14

A base that can be dissolved in water

Question 15

Name 3 properties of bases?

Answer 15

Have a soapy- slimy feel, turn red litmus paper blue, bitter taste, conduct electricity, neutralised by acids,

Question 16

What is measured when using the pH scale?

Answer 16

How many hydrogens ions in a solution

Question 17

What is the pH of water?

Answer 17

It is neutral, so 7.

Question 18

What are acids pH?

Answer 18

Less than 7.

Question 19

What are bases pH?

Answer 19

More than 7.

Question 20

What is an indicator?

Answer 20

Chemicals that change colour to show how acidic, neutral or basic a substance is.