Question

1. Write a balanced chemical equation:

1. Solid lead(II)sulfide reacts with aqueous HCL to form lead(II)Chloride and dihydrogen sulphide gas
2. Solid lithium oxide reacts liquid water to form aqueous lithium hydroxide
3. Chlorine gas reacts with aqueous potassium iodide to form solid iodine and aqueous potassium chloride.
4. Gaseous dinitrogen pentoxide decomposes to form nitrogen dioxide gas and oxygen gas
5. Gaseous carbon monoxide reacts with hydrogen gas to form gaseous methane (CH₄ )and liquid water

2. Balance the equation:

H₂(g) + N₂(g) →NH₃(g)

HCl(aq) + O₂(g) →H₂O(l)+Cl₂(g)

H₂ (g) + Cl₂(g) →HCl(g)

3. Write complete ionic and net ionic equations and identify spectator ions and type of reaction:

1. AgNO₃(aq) + KCl(aq) →AgCl(s) + KNO₃(aq)
2. CaS(aq) +CuCl₂(aq) →CuS(s) +CaCl₂(aq)
3. Na₂SO₄(aq) +CaI₂(aq) →CaSO₄(s) +2NaI(aq)

4. What is false about acids and bases:

Acids turn litmus blue                               bases turn litmus blue

Aids produce H+                                         Bases produce H+

Acids are sour to taste                              bases are bitter to taste

Acids are corrosive                                    bases are soapy in texture

Answer 1