5 gm of pure CaCO3 if treated with 5 gm of HCl to produce CaCl2, H2O and CO2, a) find which one is limiting reactant and why?
b) Calculate mass of CaCl2 formed?
c) How many number of water molecules are produced?
d) Calculate the volume of CO2 produced at NTP?

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon? a balloon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

How many neutrons does a atom of cobalt have?