calculate the amount of hydrogen sulphide that would be liberated by the action of sulphuric acid on 4.4 gram of ferrous sulphide. (Fe=56;S=32)​

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

What is the mass of 4 molecules of co2

Which of the following units is not an official si unit? mole liter kilogram ampere