(e) The 20-cent coin has a mass of 4.5 grams. (i) Calculate the mass of nickel in the coin. (ii) Nickel is extracted ... (f) During the Second World War, many countries used steel alloys in place of valuable copper and nickel in coins. Suggest whyanbsp;...
|Title||:||Chemistry O Level Mauritius Edition|
|Author||:||Mrs Jacqueline Hilary Briggs, Pearson Education, Limited|
|Publisher||:||Pearson Education South Asia - 2007-06-26|