Question

day 3 (10/7)

1. write the name for h₈p₆.
2. write the name for sncl₃.
3. write the chemical formula for gallium bromide.

Explanation:

Step1: Name $H_{8}P_{6}$

This is a binary acid. Since there is no oxygen in the compound, it is named as hydro - [non - metal]ic acid. Here the non - metal is phosphorus. So the name is hydrophosphoric acid.

Step2: Name $SnCl_{3}$

Tin ($Sn$) can have multiple oxidation states. Chlorine has an oxidation state of - 1. Let the oxidation state of $Sn$ be $x$. In $SnCl_{3}$, we have $x+3\times(- 1)=0$, so $x = + 3$. The name is tin(III) chloride.

Step3: Write formula for gallium bromide

Gallium ($Ga$) has an oxidation state of + 3 and bromine ($Br$) has an oxidation state of - 1. To balance the charges, the chemical formula is $GaBr_{3}$.

Answer:

1. Hydrophosphoric acid
2. Tin(III) chloride
3. $GaBr_{3}$