properties of co2

co2 doesn't burn and doesn't help in burning .

• true

• false

when lighted magnesium reacts with co2 ,it forms a white matter only

• true

• false

co2 is ...........than air

• heavier

• lighter

co2 is collected by ............

• downward displacement of air

• upward displacement of air

• downward displacement of water

co2 is used in ......... because it doesn't burn and doesn't help in burning

• extinguishing fires

• lightning

• forming water

co2 is not collected by displacement of water ,why?

• because it is heavier than air

• because it is easily dissolves in water

when lighted magnesium reacts with co2 , it forms .....and ....

• manganes dioxide and carbon

• magnesium oxide and carbon

• magnesium carbonate and carbon oxide

Carbon dioxide is used in extinguishing fires

• true

• false

Which of the following is from the importance of carbon dioxide gas?.....

• It is used in cutting and welding metals

• It is used in diving

• It is used in making soft drinks

• It is used during climbing mountains

Carbon dioxide gas is used in making dry ice

• true

• false