Answer:
ITS FALSE electricity doesn't travel through wood same with cement!
Answer: Copper(I) sulfate, also known as cuprous sulfate and dicopper sulfate, is the chemical compound with the chemical formula Cu2SO4 and a molar mass of 223.15 g mol−1. It is an unstable compound as copper(I) compounds are generally unstable and is more commonly found in the CuSO4 state. It is white in color at room temperature and is water-soluble. Due to the low-stability of the compound there are currently not many applications to date.
I don't know the experiment so I cannot write about that but this is when mass is neither created nor destroyed. The mass of reactants is equal to the mass of products.
D. Eye and Face Hazard is the answer. There is normally an eye wash station if anything occurs. Always wear goggles.