Making Compounds. Test Observations BeforeAfter Burning magnesium Heating Copper carbonate Magnesium + hydrochloric acid Potassium iodide + lead nitrate.

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Presentation transcript:

Making Compounds

Test Observations BeforeAfter Burning magnesium Heating Copper carbonate Magnesium + hydrochloric acid Potassium iodide + lead nitrate

Making Compounds Burning Magnesium. Burn a small piece of magnesium ribbon in a blue Bunsen flame.

Making Compounds Heating Copper carbonate. Add 2 spatulas of copper carbonate to a boiling tube. Heat strongly over a Bunsen.

Making Compounds Potassium iodide mixed with lead nitrate. Place 5ml of one solution into a test tube, and 5ml of the other solution into another test tube. Mix, then filter the resulting mixture.

Making Compounds Magnesium and hydrochloric acid Add 10ml of hydrochloric acid to a boiling tube, then drop in a piece of magnesium ribbon.

Making a Compound: Combustion Joining an element with oxygen is called combustion. How do you know a chemical reaction has taken place?

Naming compounds When elements react they produce a compound What are elements?

Naming compounds The Rules 1.The names of the elements are written from left to right as they appear on the periodic table e.g. Sodium chloride 2.If there are only 2 elements forming the compound then the ending of the second name is “ide” e.g. Copper and sulphur is called copper sulphide 3.If the compound contains oxygen and 2 other elements the ending of the second name is usually “ate” e.g. Copper, sulphur and oxygen is called copper sulphate

Elements PresentName of compound magnesium oxide silver chloride lead sulphur iron oxygen copper carbonate zinc sulphate iron sulphur oxygen calcium carbon oxygen sodium nitrate magnesium oxygen silver chlorine lead sulphide iron oxide copper carbon oxygen zinc sulphur oxygen iron sulphate calcium carbonate Sodium nitrogen oxygen

In pairs… Write the answer to the following questions on your show me board… Everyone hold up their board on the count of 3.

What elements make up… magnesium oxide

What elements make up… silver chloride

What elements make up… copper carbonate

Name the compound… iron + oxygen

Name the compound… calcium + carbon + oxygen

Chemical Equations 1.Write the heading Chemical Equations in your jotter 2.Copy the example below: Magnesium + oxygenMagnesium oxide ReactantsProducts You must use an arrow. DO NOT use an = sign

Chemical Equations sodium + chlorine magnesium + oxygen carbon + hydrogen + oxygen + lead sulphide ++ copper sulphate