A popular chocolate brand has recalled some of its Easter egg products over fears they could contain fragments of metal. Tony’s Chocolonely is recalling batches of its milk chocolate and caramel sea ...

You filter the mixture to remove the excess base/carbonate/metal to obtain the pure salt solution. The pure solution can drip through the filter paper into the beaker below, leaving the insoluble ...

These compounds containing metals and non-metals are called salts. For example, iron (a metal) reacts with copper sulfate (a salt containing copper). In a displacement reaction, a less reactive ...

The scientists were particularly concerned with tracking chromium, a frequent constituent of the metal alloys proposed for molten salt nuclear reactors. "Chromium tends to be the easiest element ...