what mass of manganese (ii) chloride must react with sulfuric acid to release 49.5 ml of hydrogen chloride gas at stp? mncl2(s) + h2so4(> mnso4(aq) + 2hcl(g)

What is important to study for nios grade 12 chemistry? i have only one month left.

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.