1. put goggles on
2.but gloves on
3.put a lab coat on
Answer:

Explanation:
Given
Compound: 
Required
Determine the equivalent mass
In the above compound, we have: 2 Al and 3 (O)
The atomic mass of Aluminium is:

The atomic mass of Oxygen is:

So, the equivalent mass is:



Answer:
They are very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides.
Explanation:
any of the elements lithium, sodium, potassium, rubidium, cesium, and francium, occupying Group IA