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Year 9 – Awesome Atoms (Chemistry) Reactions of metals with acid Wednesday 27 th July.

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Presentation on theme: "Year 9 – Awesome Atoms (Chemistry) Reactions of metals with acid Wednesday 27 th July."— Presentation transcript:

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2 Year 9 – Awesome Atoms (Chemistry) Reactions of metals with acid Wednesday 27 th July

3 Year 9 – Awesome Atoms (Chemistry) Reaction of metals All acids contain Hydrogen Metal + acid salt + hydrogen The salt formed depends on the acid used HNO 3 forms Nitrate salts H 2 SO 4 forms Sulphate salts HCl forms Chloride salts

4 Year 9 – Awesome Atoms (Chemistry) Reactivity series of metals Potassium sodium calcium magnesium aluminium zinc Iron Lead(Hydrogen) copper silver gold Decreasing activity Even though hydrogen is not a metal it can be placed in the reactivity series due to its reactivity Metals above hydrogen in the reactivity series will react with acid to make a salt + hydrogen. Metals below hydrogen will not react with acids.

5 Year 9 – Awesome Atoms (Chemistry) Why do metals react with acid? H Cl Metal more reactive than H + H Na Cl

6 Year 9 – Awesome Atoms (Chemistry) The more reactive the metal, the more vigorous the reaction. The least reactive metals do not react at all. Which metal fits the description silver; potassium; iron 1. Explodes in acid 2.Bubbles slowly in warm acid 3. Doesnt react Potassium sodium calcium magnesium aluminium zinc Iron Lead(Hydrogen) copper silver gold Decreasing activity

7 Year 9 – Awesome Atoms (Chemistry) How many of each type of atom does the formula of the salt represent? Name of Salt FormulaContains calcium chloride CaCl 2 CaCl sodium sulphate Na 2 SO 4 NaSO magnesium sulphate MgSO 4 MgSO magnesium nitrate Mg(NO 3 ) 2 MgNO calcium sulphate CaSO 4 CaSO Formula of salts

8 Year 9 – Awesome Atoms (Chemistry) 2 + magnesium chloride +magnesium Mg+HCl MgCl 2 + H2H2H2H2 No reaction hydrochloric acid +copper Cu+HCl--hydrogen+ + Al+HCl AlCl 3 + H2H2H2H2+ hydrochloric acid +calcium 6 2Ca+HCl CaCl 2 + H2H2H2H2 2

9 Year 9 – Awesome Atoms (Chemistry) + sulphuric acid +zinc Zn+ H 2 SO 4 ZnSO 4 + H2H2H2H2+ nitric acid +magnesium Mg+ HNO 3 Mg(NO 3 ) 2 + H2H2H2H2+ nitric acid +iron Fe+ HNO 3 Fe(NO 3 ) 3 Fe(NO 3 ) 3+ H2H2H2H2+ sulphuric acid +calcium 3622Ca+ H 2 SO 4 CaSO 4 + H2H2H2H2


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