Learn about elements, compounds and mixtures in this KS3 Chemistry guide from BBC Bitesize.

The film discusses the classification of matter into homogeneous and heterogeneous types, focusing on elements, compounds, and mixtures. It explains the properties of two elements, iron and sulfur ...

Here we report on the direct observation of an exoergic atom-exchange reaction in an ultracold atom–dimer mixture. Both the atom and molecule products are observed and the state-to-state ...

For example, one molecule of water ( H 2 0) would not be liquid and would not put out a fire. The idea is that Linus collects a large number of the type of atom (the element) he needs and uses a ...

Replacing a single atom in a molecule without altering the others has always been a challenge for chemists. Now, a novel technique based on light simplifies this operation.

Physicists have developed a novel technique that can detect molecular variants in chemical mixtures -- greatly simplifying a process that is one of the most important, though time-consuming ...

Physicists have boosted their control of the fundamental properties of molecules at the quantum level by linking or 'entangling' an electrically charged atom and an electrically charged molecule ...

It’s common in animals such as squid and horseshoe crabs, whose blood relies on a chemical called hemocyanin, which contains a copper atom, to carry oxygen.

We prepared hydrogen fluoride in an argon matrix by passing argon over an HF–pyridine polymer (Fluka) at room temperature, and condensing the mixture onto a CsI substrate kept at 7.5 K. The ...