please can I get some help with this question? A, B and C

4 a) A research group is developing a new epoxy resin to be cured at room temperature. i) Which types of co-reactive amines could you use as curing agents? ii) Give two limitations for each co-reactive amine identified at point (i) if the resulting epoxy resin is used as marine coatings. b) Calculate the density of a composite containing a polymer matrix with density equal to 1.25 g cm3 and 60% w/w glass fibres with density equal to 2.50 g cm3. Also, calculate the volume fraction of each component and explain why the measured density value is usually lower than the theoretical value. c) c) Which safety precautions would you take if you were to apply a polyurethane coating to interior wooden floor and why