Acids and Bases

Question 1

What are some examples of household acids?

Answer 1

Vinegar, citrus and coke

Question 2

What are some examples of industrial acids?

Answer 2

H2S04 - Sulfuric Acid
HCl - Hydrochloric Acid
HN03 - Nitric Acid

Question 3

What are some of the qualities of acids?

Answer 3

They taste sour and feel rough.

Question 4

What are some examples of household bases?

Answer 4

Detergents, toothpaste and soup

Question 5

What are some examples of industrial bases?

Answer 5

Na0H - Sodium Hydroxide
NH3 - Ammonia
K2C03 - Potassium Carbonate

Question 6

What are some examples of the qualities of bases?

Answer 6

They taste bitter and feel slippery.

Question 7

What is a neutral substance?

Answer 7

A neutral substance is neither an acid nor a base. A neutral substance has a pH level of 7.

Question 8

What is the pH scale?

Answer 8

pH means power of hydrogen. It is a measure of how strong an acid or base is.

Question 9

What is an indicator?

Answer 9

An indicator is a chemical/ natural substance that shows whether a substance is an acid or base.

Question 10

What are some examples of natural indicators?

Answer 10

Litmus paper, rooibos tea, cabbage (red) water, turmeric water, red onion water

Question 11

What are some examples of chemical indicators?

Answer 11

Bromothymol Blue, Universal Indicator, Phenolphthalein, Methyl Orange

Question 12

What does an acid + a metal =?

Answer 12

Salt + H2 (g)

Question 13

What does H2S04 + Zn equal?

Answer 13

ZnS04 + H2 (g)

Question 14

What does an acid + a metal carbonate equal?

Answer 14

Salt + Water + C02 (g)

Question 15

What does HN03 + K2C03 equal?

Answer 15

K2N03 + H20 + C02 (g)

Question 16

What does an acid + a metal hydroxide equal?

Answer 16

Salt + Water

Question 17

What does 2HCl + Fe(OH)2 equal?

Answer 17

FeCl + H20

Question 18

What does an acid and a metal oxide equal?

Answer 18

Salt + Water

Question 19

What does HN03 + Cu0 equal?

Answer 19

CuN03 + H20