What is five x three, and what do you think

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium

How many moles of oxygen react with 12 moles of aluminum