A range of production processes frequently employ acid mixtures comprised of two or three acids; for example, nitric acids, sulfuric acids and hydrochloric acids. In order to use these acids safely ...

I've got a question for you guys. Do you think I can fit this length of polystyrene into this jar? Yes. No. No? Yeah? I like that – you lot have got some faith in me! Excellent. Right, this is what we ...

There are lots of different substances but only just over a hundred elements. An element is a substance that is made up of only one kind of atom. The atoms in a particular element are the same as each ...