2.
which of the following chemical reactions would react most slowly
a
reacting 2g of powdered zinc with 1 mol l sulfuric acid at a temperature of 20°c
reacting 2g of powdered zinc with 2 mol l sulfuric acid at a temperature of 30°c
reacting 2g of zinc lumps with 1 mol l sulfuric acid at a temperature of 20°c
reacting 2g of zinc lumps with 2 mol l sulfuric acid at a temperature of 30°c
answer

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.

Match each term to its description. match term definition excess reactant a) reactant that can produce a lesser amount of the product limiting reactant b) amount of product predicted to be produced by the given reactants theoretical yield c) reactant that can produce more of the product