160g of aluminum is burned in excess air to produce aluminum oxide, Al2O3(s). When the reaction is complete, 260g of solid aluminum oxide has been produced.
Write a balanced equation for the reaction. (1 mark)
Calculate the theoretical yield. (2 marks)
.
Calculate the percentage yield. (2 marks)

The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table.state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?

If 15 drops of ethanol from a medicine dropper weigh 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? density of ethanol is ethanol is 0.80g/ml.

Is the genie in the bottle experiment a physical or chemical change/reaction?