Acids and bases chemistry

Question 1

What is the formula of the ion present in all acids?

Answer 1

Hydrogen ion, H+

Question 2

What is the formula of the ion present in all alkalis?

Answer 2

hydroxide ion, OH-

Question 3

What is the formula for hydrochloric acid, nitric acid and sulfuric acid?

Answer 3

HCl, HNO3, H2SO4

Question 4

What is the formula for sodium hydroxide, calcium hydroxide and ammonium hydroxide?

Answer 4

NaOH, Ca(OH)2, NH4OH

Question 5

What are the properties of acids?

Answer 5

Sour and corrosive

Question 6

What are the properties of alkalis?

Answer 6

Bitter and caustic

Question 7

What are the chemical properties of acids/ acids reactions?

Answer 7

1. Acid + Active metal –> salt + hydrogen
2. Acid + Base –> salt + water
3. Acid + Carbonate –> salt + water + carbon dioxide

Question 8

What are the chemical properties of bases/ bases reaction?

Answer 8

1. Acid + base –> salt + water
2. Alkali + ammonium salt –> salt + water + ammonia
3. Alkali + salt –> salt + base

Question 9

What are bases?

Answer 9

-generally metal oxides or hydroxides
-generally insoluble in water

Question 10

Is alkali a soluble base?

Answer 10

yes

Question 11

What is neutralization

Answer 11

acid reacting with bases/alkali to form the neutral water

Question 12

What is Basic oxides?

Answer 12

-metal oxide
-CaO, MgO, CuO, FeO
- react only with acids to form salt + water

Question 13

What is Amphoteric oxide?

Answer 13

-metal oxide
-zinc oxide (ZnO), Aluminium oxide (Al2O3), Lead oxide (PbO)
- reacts with both acid and alkalis to form salt + water

Question 14

What is neutral oxide?

Answer 14

-non-metal oxide
-Carbon monoxide (CO), Nitrogen oxide (NO), Hydrogen oxide (H2O)
-does not react with acids or alkali

Question 15

What is Acidic oxide?

Answer 15

-non-metal
-CO2, NO2, SO2
-react with bases to form salt and water