Answers to Chemistry Questions

If water freezes at zero, we get frost at three degrees C?

Why is it that when you pour cola in a glass with ice, there's more foam than when you pour it in a glass with no...

Why does water bubble when it boils?

Jet streams flow laterally due to centripetal forces. If CFC gases caused the hole in the ozone layer over the poles,...

Can we crack water into it's components of oxygen and hydrogen and then burn the hydrogen using the oxygen to...

On last week's show you were talking about polonium 210 being difficult to obtain but in fact anyone can buy it...

What's a flame made of? Is it made of carbon, and if so can substances that don't contain carbon actually...

What would happen if you lit a match in space? Considering there's oxygen in the air on a space station but no up...

What are the properties of baking soda that allow it to alleviate nasty odours in my refrigerator?

Why is it that bubbles are always round?

Why after eating asparagus does your urine smell so strong?

When fireworks are released into the air they turn into smoke and dust. Is there any danger from this?

I've come across a website for a gas made using water, that ignites but is not hydrogen. I was wondering what your...

What are magnets made out of and how are they made?

On a recent trip to Sweden I noticed at the check in desk that my mobile battery was running low and was just about to...

Why do cars smell like rotten eggs after a while? Is this down to catalytic converters?

Why does compressed natural gas, or methane, burn cleaner than regular fuel? It's still a hydrocarbon. Why shouldn...

Is there a lost formula for using water as our main fuel? Do you guys know anything about this?

Is the caloric content of food when it is stated on the packet the amount of energy given off when it's burned?...

I'd like to know whether it's possible to change your hair colour without chemicals, such as with gene...

Tapping the top of an open beer bottle produces a beer volcano - why?

Why do pictures fade in paintings and books? Is it a chemical reaction?

I'd like to know if putting lemon juice on your hair really helps to bleach it, and if so, why?

Why do we assume that life on other planets would be a carbon-based, Homo erectus type of being that breathes oxygen?...