Sn is Tin. and the suffix for Chlorine is nearly always Chloride. The (II) means the Tin [in a hypothetical situation where the compound was purely ionic] has an oxidation state of 2, or +2, (ie deficient of two electrons). Source: A2 Chemistry Student.
The chariot was built of pieces of wood which had been bent into the required shape possibly by immersing them in boiling hot water for several hours, bending them and then letting them dry. Various kinds of wood were used: elm, ash for the axles and sycamore for the foot board. The Egyptians knew two types of chariots.
Large areas of land were covered by forest, so it was much easier to transport goods by river. By the start of the Bronze Age, people in Britain had learned to tame horses. Then, around 1000BC, they learned to make carts with wheels. Some farmers travelled on horseback or used wooden carts, pulled by horses or oxen. The first war chariots appeared at the end of the Bronze Age.