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Post Test: Atoms and Elements
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Much of the mass of an atom is concentrated in its nucleus. The nucleus contains
. and the outer part of the atom contains
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An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

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

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?