Law of conservation of mass — task. Science CBSE Homework Assignments, Class 9.

1. When 5 g of Calcium is burnt in 2 g of Oxygen then 7 g of Calcium oxide is produced. What mass of calcium oxide will be produced when 5 g of calcium reacts with 20 g of oxygen ?

2. The law of conservation of mass was given by

Answer variants:

Lavoisier

Proust

7 g

5 g

Previous task

Exit to the topic

Next topic

Send feedback

Did you find an error?

Send it to us!

3. Law of conservation of mass

Task: