Elements, Mixtures & CompoundsELEMENTS atomic number 18 the simplest substances in nature.All of the brokers argon shown in a bow called the PERIODIC TABLE. In this sidestep they are group so that parts which be withstand in similar shipway are in the same group.Every element in the periodic table is given a symbolic representation (e.g. Fe is iron, Cu is copper, O is group O)The smallest part of an element is called an ATOMAn element contains only ONE display case of atom - e.g. the element coppper contains only copper atoms, the element oxygen conttains only oxygen atoms and so on.A COMPOUND contains two or more elements chemically bonded together.A MIXTURE contains different elements or compounds miscellaneous together (not bonded together) Â | | This lay out of apparatus is called a LIEBIG CONDENSER. It is used for DISTILLATION. end you remember how it plant?| | | Â | | Separating MixturesMIXTURES sens be disjointed in different ways: 1. A motley o f two liquids so-and-so be detached by DISTILLATION2. A mixture of a liquid and an insoluble solid can be separated by FILTERING3. A solid can be separated from a declaration by EVAPORATING off the liquid 4. A mixture of dyes can be separated using CHROMATOGRAPHY. The mixture is placed onto chromatography newsprint and water is used to separate the dyes.
Metals and Non-MetalsMETALS commonly have the succeeding(a) properties:They are HARD They are MALLEABLE (can be cockiness into shape) They CONDUCT light up and electricity well They are sometimes magnetic (iron, nickel, cobalt) They are SONOROUS wh en hit (ring like a bell)NON- METALS usually! have the following properties:They are BRITTLE (break apart when taken with(p) or bent) They DO NOT CONDUCT HEAT and ELECTRICITY well They are NOT MAGNETIC yard SODIUM CALCIUM MAGNESIUM ZINC IRON grunter SILVER GOLD | Â | The reactivity serial publication| Â | The responsiveness SeriesDifferent metals are more or less responsive than apiece other. We can order the metals by reactivity from the some unstable to the least reactive. We call this...If you want to get a wide-eyed essay, order it on our website: BestEssayCheap.com
If you want to get a full essay, visit our page: cheap essay
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.