a pyrotechnician mixes 280 G of black powder for a firework find the amount of oxygen carbon dioxide and sulfur dioxide generated when this firework burst if the oxygen oxidizing agent is a powder saltpeter​

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

An alpha particle is: a hydrogen atom a nucleus of helium two neutrons an electron

The molar mass of iron(fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?