A dot and cross diagram for sodium chloride suggests that it is made up of pairs of sodium and chloride ions. It is not. A 3D construction model shows how the ions are arranged in a lattice structure.

About 98% of lignin created as a forestry by-product from plants is discarded, but a new enzyme could be the key to ...

Scientists have unveiled a groundbreaking chemical process that could streamline the development of pharmaceutical compounds, chemical building blocks that influence how drugs interact with the body.

\({\%~of~an~element} = \frac{mass~of~an~element~in~the~compound}{relative~formula~mass~M_r} \times 100\) There are six atoms of hydrogen in the compound, so the mass of hydrogen is 6 × 1 = 6.