Answer: Boiling chips provide surfaces on which bubbles can form as the liquid boils.
Hope this helps!
There are eight bonded electrons in this molecule! :)
Add 4H2 in the reactant side, that will give you 4H2O in the product side.
Answer:

Explanation:

The incomplete combustion of alkanes, and other fuels actually, happens when there is a limited supply of oxygen. Instead of the fuel burning completely to produce carbon dioxide, it produces carbon monoxide instead.
This gas is harmful to jumans because it combines with haemoglobin in lood and takes up space that belongs to oxygen which can lead to suffocation or even death