Year 10 Textbook

More documents

Recommendations

Info

St. Mary’s College Science DepartmentYear 10 ScienceHomework 7Copy and complete…Acids have a pH number _____ than 7. An acid added to a metal will make a____ and ____. Hydrogen gas ____ with a ____ splint. Sulphates are madefrom ____ acid. Chlorides are made from ____ acid. Nitrates are madefrom ____ acid. To make Zinc Chloride we use ____ and ____ acid.You have now carried out the experiment to make salts by reacting metals withacid. You should now have a look at the chemical equations for these reactions.First look at the reaction between Magnesium metal and Hydrochloric acid…The word equation is as follows…Magnesium + Hydrochloric AcidMagnesium Chloride + HydrogenThe symbol equation is…Mg + 2HCl MgCl 2 + H 2Magnesium Chloride is the name of the salt that is produced and hydrogen gas isalso produced and given off.The equations for the reactions between the other metals and the acid are verysimilar.Also you could use different types of acid to make different types of salt. Forexample – if you use Sulphuric acid the salt will be a ‘sulphate’; if you use Nitricacid the salt will be a Nitrate and if you use Hydrochloric acid the salt will be aChloride.You might have noticed some signs of a reaction when you carried out thelast experiment – bubbles of Hydrogen gas forming, the metal fizzing,perhaps even some heat being given off. However, the salt that was producedwas actually dissolved in the water from the dilute acid and so you probablycouldn’t actually see it.Next you are going to make a salt by reacting a metal and acid but you willthen filter and evaporate so you actually obtain the solid salt.110
St. Mary’s College Science DepartmentYear 10 ScienceThe salt you are going to make is called Zinc Sulphate.You might be able to work out which acid and which metal you need to reacttogether to make this salt….Zinc metal reacting with Sulphuric acid will make the salt ‘Zinc Sulphate’.Making Zinc Sulphate using the metal and acid method…111
Page 1 and 2:
St. Mary’s College Science Depart
Page 3 and 4:
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60: St. Mary’s College Science Depart
Page 109: St. Mary’s College Science Depart
Page 161 and 162:
Page 163 and 164:
show all

Year 10 Textbook

Create successful ePaper yourself

Delete template?

Save as template?