When silver (Ag) react with sulfur (S8), the compound silver sulfide (Ag2S) is formed a) when 4.00g of silver react with 4.00g of sulfur , what mass of silver sulfide is produced ?
b) How much of the excess reactant remains after the reaction stops ?

Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.