What mass of precipitate (in g) is formed when 69.9 mL of 0.500 M AlBr₃ reacts with excess AgNO₃ in the following chemical reaction? AlBr₃(aq) + 3 AgNO₃(aq) → 3 AgBr(s) + Al(NO₃)₃(aq)

The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?

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.

Apound is approximately 0.45 kilogram. a persons weighs 87 kilograms. what is the persons’s weight, in pounds, when expressed to the correct number of significant figures