Using the chemical equation below, how many grams of Fe produce when 7 moles of Fe2O3 are reacted ? 2Al+Fe2O3 —> Al2O3+2Fe

What is a metal replacement reaction

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

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.