C3 Quiz 0.0 / 5 ? ScienceExtension science chemistryGCSEEdexcel Created by: bethany_sCreated on: 28-05-17 21:14 What does qualitative analysis tell you? What ions are present 1 of 14 Which two substances help you to test for Hallides? Nitric acid and silver nitrate 2 of 14 One mole of any substance has a mass in grams equal to the___________ Relative formula mass of that substance 3 of 14 Mass-conentration= Mass/volume 4 of 14 Hard water forms a precipitate called_____ scum 5 of 14 How would you remove permanent hardness from water? Using an ion exchange resin 6 of 14 Which indictator would you use for a weak acid and a strong alkali? Phenolphthalein 7 of 14 Number of moles= concentration x volume 8 of 14 What is the name for negative ions? Anions 9 of 14 What is the name of positive ions? Cations 10 of 14 Why would you want to electroplate something? To prevent corrosion 11 of 14 What is avogadro's law? One mole of any gas occupies 24dm^3 12 of 14 What is the pressure commonly used for production of ammonia? 200 atmospheres 13 of 14 What is the functional group of alcohols? -OH 14 of 14
Comments
No comments have yet been made