What is the formula of the compound Pentasilicon trioxide ?

If 90.0 grams of ethane reacted with excess chlorine, how many grams of dicarbon hexachloride would form

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

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