Question

3g of carbon when burnt in 8g of oxygen forms 11g of CO2. The mass of CO2
formed when 3g of carbon is burnt in 20g of oxygen would be ----------.
(i) 23g
(ii) 11g
(iii) 20g
(iv) No reaction takes place.
Explain your choice.

Answer 1

When 3 g of carbon is burnt in 8 g of oxygen ,we get 11g of CO2. Hence, though 3 g of carbon is burnt in 50 g of oxygen,� it will react with 8 g of oxygen only to form 11 g of carbon dioxide.

Answer 2

Answer:

(ii)11g

hope it help