10. When carrying out the experiment with magnesium
and sulphuric acid, why do you
add magnesium until it stops
fizzing?

Which substances have the lowest melting points: ionic covalent, or metallic

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg