Which of these pure substances do you think are Elements? Au (Gold)
C6H12O6 (Sugar)
Fe (Iron)
NaCl (Salt)
O (Oxygen)
Fe2O3 (Rust)

Which metal exist in liquid state and can be cut with knife ?

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion

If you need to add 27.50ml of a solution, which piece of glassware would you use to deliver this volume and explain how you would determine if the 27.50 ml was measured?