EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Give the word equation for the combustion of natural gas, in a gas boiler, when the boiler is working well.

Important Questions on Some Non-Metals and their Compounds

EASY
Upper Secondary: IGCSE
IMPORTANT
Give the word equation for the combustion of natural gas in a gas boiler, when the air inlet is partly blocked with soot.
EASY
Upper Secondary: IGCSE
IMPORTANT
Gas boilers should be checked regularly, to make sure air flows through the burner properly. Why?
EASY
Upper Secondary: IGCSE
IMPORTANT
Write an equation to show what happens when lead(II) carbonate is heated.
EASY
Upper Secondary: IGCSE
IMPORTANT
When Calcium carbonate is heated, what kind of reaction occurs?   
EASY
Upper Secondary: IGCSE
IMPORTANT
Name three sources of methane, CH4.
EASY
Upper Secondary: IGCSE
IMPORTANT
Which do you think that fuel is the main source of CH4?
EASY
Upper Secondary: IGCSE
IMPORTANT

 Is it organic, or inorganic? (a) sodium chloride.

EASY
Upper Secondary: IGCSE
IMPORTANT
Is it organic, or inorganic? (b) Water