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% Comp
100

N2 + H2 --> NH3

What is 1 N2 + 3 H2 --> 2 NH3?

100

Convert 10 moles of boron (B) to grams.

What is 108.1 grams of B?

100

What mass of hydrogen gas reacts with 34.5 grams of nitrogen gas?

1 N2 + 3 H2 --> 2 NH3

What is 7.46 grams of H2?

100

What is the empirical formula of a compound composed of 14.1% carbon, 2.4% hydrogen, and 83.5% chlorine? 

What is CH2Cl2?

100

There are 10.0 g of sucrose and 10.0 g of oxygen reacting. Which is the limiting reagent?

C12H22O11 + 12O---> 12CO+ 11H2O


What is O2?

100

List the percent composition for every element of the following compound: Na2SO3

Na: 36.48%; S: 25.44%; O: 38.08%

200

Ag2O + Ag --> O2

What is 2 Ag2O + 4 Ag --> 1 O2?

200

Convert 54 grams of lithium (Li) to atoms.

What is 4.69 x 1024 atoms of Li?

200

What is the mass of fluorine gas that reacts with 32 g of NaCl?

2 NaCl + 1 F2 --> 2 NaF + 1 Cl2

What is 10.39 g F2?

200

What is the molecular formula of a compound that is 13.33% carbon, 4.44% hydrogen, 46.67% nitrogen, and 35.56% oxygen with a molar mass of 360 amu?  

What is C4H16N12O8?

200

Suppose 316.0 g of aluminum sulfide reacts with 493.0 g of water. What is the limiting reactant?

Al2S3 + 6H2O ---> 2Al(OH)3 + 3H2S

What is Al2S3?

200

List the percent composition for every element of the following compound: Cr(NO2)2

Cr: 36.11%; N: 19.45%; O: 44.44%

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