Carbon monoxide is a colorless, odorless, and tasteless gas that is slightly lighter than air. It is toxic to both humans and animals.
Source: http://en.wikipedia.org/wiki/Carbon_monoxide
smoke comes through the filter on the cigarette and into your lungs
no
It's colorless because it's distilled and contains basically just ethanol and water. However, it gains color through its aging in oak barrels.
You can inhale the cigarette smoke, but not the cigarette. To smoke is to inhale the smoke when it's in your lips. You also can inhale the smoke when the cigarette smoke is near to your nose, or through your open mouth. But never try to do it. Smoking is very harmful.
The two colorless gases that combine to form a colorless liquid are hydrogen gas (H2) and oxygen gas (O2), which react to form liquid water (H2O) through a chemical reaction.
A circle with a cigarette on it with a line through it.
Through the cigarette lighter.
There is no evidence that suggests sucking on an unlit cigarette can harm you. The chemicals in cigarettes aren't inhaled except through smoke.
No, oxygen is not opaque. It is a colorless, transparent gas that allows light to pass through it.
Neither one is "poisonous", but an adult male platypus has a venomous spur through which it can deliver a powerful and agonising venom.
All of them.
no