Question

A piece of zinc with a mass of 40 g was
heated. It increased in mass by 20%
What is the mass of solid formeo?​

Answer 1

Answer:

First of all zinc doesn't change mass when heated.

Then also:

Explanation:

Actual mass: 4g

Percentage of increase :20%

So, new mass: 4+ (4×20/100) g

= 4.8 g

Ans: 4.8 g