Question

2. Identify the type of bonds in the following compounds:
a) Potash
b) Carbon tetra hydride c) Water d) Com
e) Zinc sulphide f) Carbon dioxide
g) Magnesium oxide
h) Phosphorus trichloride i) Sand

Answer 1

Answer:

(a) Potassium bromide(aq) + Barium iodide(aq) → Potassium iodide(aq) + Barium bromide(s)

2KBr(aq)+BaI 2(aq)

​

→2KI (aq)+BaBr 2(s)

In this reaction, both the reactants exchanges ions to for two new products, hence, it is a double displacement reaction

(b) zinc carbonate(s) → Zinc oxide(s)

In this reaction, a single substance yields two different product. hence, it is a decomposition reaction

(c) Hydrogen(g) + Chlorine(g) → Hydrogen chloride(g)

H2(g)+Cl 2(g)

→2HCl(g)

In this reaction, two different reactants react with each other to form a single product. Hence, it is called a combination reaction

(d) Magnesium(s) + Hydrochloric acid(aq) → Magnesium chloride(aq) + Hydrogen(g)

Mg (s)+2HCl(aq)

​

→MgCl 2(aq)+H 2(g)

In this reaction, more reactive Mg is replacing less reactive H. Hence, it is displacement reaction

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Answer 2

Answer:

Explanation:

Answer:

(a) Potassium bromide(aq) + Barium iodide(aq) → Potassium iodide(aq) + Barium bromide(s)

2KBr(aq)+BaI 2(aq)

​

→2KI (aq)+BaBr 2(s)

In this reaction, both the reactants exchanges ions to for two new products, hence, it is a double displacement reaction

(b) zinc carbonate(s) → Zinc oxide(s)

In this reaction, a single substance yields two different product. hence, it is a decomposition reaction

(c) Hydrogen(g) + Chlorine(g) → Hydrogen chloride(g)

H2(g)+Cl 2(g)

→2HCl(g)

In this reaction, two different reactants react with each other to form a single product. Hence, it is called a combination reaction

(d) Magnesium(s) + Hydrochloric acid(aq) → Magnesium chloride(aq) + Hydrogen(g)

Mg (s)+2HCl(aq)

​

→MgCl 2(aq)+H 2(g)

In this reaction, more reactive Mg is replacing less reactive H. Hence, it is displacement reaction