Chemistry

• Zn= Zinc
• Pb= Lead
• Au= Gold
• Ag= Silver
• Na= Sodium
• Sn= Tin
• Acute Toxicity

  
• Corrosive

  
• Oxidising

  
• Flammable

  
• Moderate health hazard

  
• Hazardous to the aquatic environment

  
• Serious health hazard

  
• Red cabbage indicator turns pink when acid is present
• Red cabbage indicator turns blue/green when a alkali is present
• Litmus turns red if an acid is present
• Litmus turns blue when an alkali is present
• Compounds can't be broken down into other substances by physical methods
• Compound: a thing that is composed of two or more separate elements; a mixture
• A Compound does not have the properties of both elements that it is made of.
• componds give out heat when they are formed
• Mixture= 2 or more elements or compounds that are not chemically combined together.
• Mixture has no chemical change when it is formed
• Mixtures don't give out heat when formed
• Mixtures have the properties of the substances in it
• Mixtures ca be separated into two or more substances by physical methods
• An Element is a substance only containing one type of atom
• A compound contains two or more elements chemically joined
• A molecule is a group of atoms that are joined together
• A mixture contains two or more elements or compounds that are not chemically combined together.