Terne, originally an alloy of lead (Pb; r = 154 pm, face-centered cubic) and tin (Sn; r = 140 pm), appears to contain approximately 7 tin atoms for every 16 lead atoms. How can this alloy be characterized?

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.