Q14.97 - Chemistry: Molecular Nature Of Matter And Change

Question

Question: Complete and balance the following: 

$$\begin{gathered} \mathbf{a}\mathbf{.}\mathbf{ }\mathbf{As}\left(\mathbf{s}\right)\mathbf{+}{\mathbf{excessO}}_{\mathbf{2}}\left(\mathbf{g}\right)\to \\ b. \mathbf{Bi}\left(\mathbf{s}\right)\mathbf{+}{\mathbf{excessF}}_{\mathbf{2}}\left(\mathbf{g}\right)\to \\ c. {\mathbf{Ca}}_{\mathbf{3}}{\mathbf{As}}_{\mathbf{2}}\left(\mathbf{s}\right)\mathbf{+}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}\left(\mathbf{l}\right)\to \end{gathered}$$

Step-by-Step Solution

Answer

Answer

(a)

(b)

(c)

Step 1: Group 15 elements

Group 15 elements belonging to the nitrogen family. They include nitrogen, phosphorus, arsenic, antimony, bismuth, and moscovium.

The atomic numbers of the group 15 elements are as follows;

Nitrogen (N) = 7

Phosphorus (P) = 15

Arsenic (As) = 33             

Antimony (Sb) = 51

Moscovium (Mc) = 83

Step 2: Reaction of arsenic, bismuth and calcium

(a)

Arsenic reacts with oxygen and gets oxidized. It gives arsenic oxide as a product. The balanced equation for the reaction is as follows;

(b)

Fluorine and bismuth react with each other to form bismuth fluoride. The balanced equation for the reaction is as follows;

(c)

When calcium arsenide is hydrolyzed it gives following compound is obtained as a product.