Gas is a sate of matter, not any specific substance
It is a colourless, odourless, dense, inert gas.
physical propertys do something but dont change.Chemical changes toataly change
Oxgyen is a colourless, odourless gas under ordinary conditions. For more information you might wish to view the wikipedia article about it.
respectforgivenesstrusthumour
Halogens can be gaseous, liquid or solid; noble gases are only gases.Halogens are very chemical reactive elements; only some compounds of noble gases are known.
what are some examples of propertys
is it the way it feels
a major component of matter???
Yes, gas is a chemical indeed.
The chemical formula for Hydrogen gas is H2
No, melting ice is a chemical change where as carving ice is physical.... Another example is chewing food is physical where as enzymes in your saliva breaking down the food is chemical.
The chemical formula is NH3