Air is a mixture of several gases, most notably nitrogen, oxygen, and some trace gases (eg, argon).
Air is a mixture.
Air is a mixture.
No. To start with, air is not a pure substance, and mixiong it with something else just makes it worse.
pure substance?
No, it is a mixture; rarely a drug is a pure substance.
No a mixture is by definition not a pure substance.
It depends. You can have a gaseous mixture such as air, which would be a homogeneous mixture. But a single gas such as oxygen or methane would be a pure substance.
pure substance
It is a mixture of substances
a cloud is a mixture of water vapor and dust(ground)
rice pudding a pure substance or a mixture and is it a homogenous or heterogenous
pure substance, propanone