exam 3 chm
How many moles of water are produced from the reaction of .112 mol of oxygen according to this reaction
.224 mol
when barium chloride is allowed to react with silver nitrate to give barium nitrate and silver chloride, what are the coefficients for the balanced equations
1,2,2,1
what are the coefficients for the balanced equations
1,6,2,3
How many moles of water H2O are present is 75.0 grams H2O
4.16 mol
What is the mass percent oxygen in sodium carbonate, Na2CO3
45.3%
if 20.0 g acetylene is allowed to completely react with oxygen how many grams of O2 are reacted
61.4 grams
The molar mass of calcium hydroxide, Ca (OH)2 is
74.1 grams
How many grams of Fe2O3 are there in .500 mol of Fe2O3
79.9
what is the coefficient for oxygen in the balanced equation
8
The empirical formula of a compound is CH2 and its molar mass is about 42 g what is the molecular formula
C3H6
What is the empirical formula of the compound between calcium and sulfur that has the percent composition 55.6% by mass calcium and 44.4% by mass sulfur
CaS
the reaction of carbon dioxide to form carbon monoxide and oxygen is what type of reaction
decomposition
what is the classification for this unbalanced reaction
single replacement
A chemical equation is balanced when
the number of atoms of each element is the same in both the reactants and products
which of the following is a combination reaction
N2(g)+O2(g) ___ 2NO(g)