50×12×1 over 100

slove

What are the similarities of physical and chemical change ?

Will a solution form when the solvent and solute are both nonpolar? a. not likely b. never c. most likely

Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas.caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible.relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)