kenjones wrote:A question has been asked on another forum about how much road tax motorhome owners pay. It does appear that the amount varies according to how your vehicle is registered.My 2004 Topaz 2.5 tdi is shown as a Diesel Car and currently taxed at Â£245 pa. paid Â£205 road tax at the end of December for 12 months. Surely your van should be classed as a motor caravan and tax class PLG as mine is. I seem to remember some dicussion about this on another forum some time ago.
A substance is matter which has a specific composition and specific properties. Every pure element is a substance. Every pure compound is a substance. Examples of substances: Iron is an element and hence is also a substance. Methane is a compound and hence is also a substance.
A pure substance (usually referred to simply as a substance) is matter that has distinct properties and a composition that doesn't vary from sample to sample. ! A pure substance can be an element, compound, or a mixture.