Question

Write equations describing the reactions of Ga with each of the following: ${\mathit{F}}_{\mathbf{2}}$,${\mathit{O}}_{\mathbf{2}}$,${\mathbf{\text{S}}}_{\mathbf{8}}$, and$\mathit{H}\mathit{C}\mathit{l}$.

Short answer

The equations of the following elements that react with Gallium are:

${\text{F}}_2:2\text{Ga}\left(s\right)+3{\text{F}}_2\left(g\right)\to 2{\text{GaF}}_3\left(s\right)$

${\text{O}}_2:4\text{Ga}\left(s\right)+3{\text{O}}_2\left(g\right)\to 2{\text{Ga}}_2{\text{O}}_3\left(s\right)$

$\text{S}:2\text{Ga}\left(s\right)+3{\text{S}}_2\left(g\right)\to {\text{Ga}}_2{\text{S}}_3\left(s\right)$

$\text{HCl}:2\text{Ga}\left(s\right)+6\text{HCl}\left(aq\right)\to 2{\text{GaCl}}_3\left(aq\right)+2{\text{H}}_2\left(g\right)$

Step-by-step solution

Definition of reaction

A chemical reaction occurs when one or more compounds, known as reactants, are changed into one or more distinct substances, known as products.

Find the equations

• Group 3A members all decrease halogens $\left(X_2\right)$.
• The${\mathrm{BX}}_3$ compounds are volatile and covalent

$2\text{Ga}\left(s\right)+3{\text{F}}_2\left(\text{g}\right)\to 2{\text{GaF}}_3\left(s\right)$

• All members of Group 3A become oxides when heated at a high temperature in pure ${\mathrm{O}}_2$.

$4\text{Ga}\left(s\right)+3{\text{O}}_2\left(g\right)\to 2{\text{Ga}}_2{\text{O}}_3\left(s\right)$

• Sulfides are formed when Group 3A elements react with elemental sulphur.

$16\text{Ga}\left(s\right)+3{\text{S}}_8\left(s\right)\to 8{\text{Ga}}_2{\text{S}}_3\left(s\right)$

• The Group 3A elements create hydrogen gas and metal chloride by dissociating$HCl$ and reacting with $H^{+}$.

$2\text{Ga}\left(s\right)+6\text{HCl}\left(aq\right)\to 2{\text{GaCl}}_3\left(aq\right)+3{\text{H}}_2\left(g\right)$