How do write a application for a science project

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2al(s)+3cl2(g)→2alcl3(s) what is the maximum mass of aluminum chloride that can be formed when reacting 32.0 g of aluminum with 37.0 g of chlorine? express your answer to three significant figures and include the appropriate units.

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Is a pencil falling to the floor anon contact force, a force, or a contact force