This article is about the common soluble and insoluble salts.

This article introduces the three main approaches to prevent iron from rusting. 1. Coating 2. Preventing iron from losing electrons 3. Alloying

Many compounds have a colour. Different ions in aqueous solutions have different colour. By observing the colour of the aqueous...

Laboratory safety is the No. 1 priority in conducting experiments. Here are the key safety precautions:   Wear safety goggles...