Ammonium perchlorate NH4ClO4 is a powerful solid rocket fuel, used in the Space Shuttle boosters. It decomposes into nitrogen N2 gas, chlorine Cl2 gas, oxygen O2 gas and water vapor, releasing a great deal of energy. Calculate the moles of ammonium perchlorate needed to produce 0.055mol of oxygen. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

the answers would be

the first one and the second one

there are two significant figures.

you need to have a picture of the atom that way we can answer it