Balance it!
This to that
This + This = That
Make that formula!
Don't Limit Yourself
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?

200

Ag2O + Ag --> O2

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

200

Convert 54.8 grams of Aluminum (Al) to moles.

What is 2.03 moles of Al?

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 composed of 25.9% nitrogen and 74.1% oxygen with a molecular mass of 324 amu?

What is N6O15?

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?

300

CO2 + H2O --> C6H12O6 + O2

What is 6 CO2 + 6 H2O --> 1 C6H12O6 + 6 O2?

300

Convert 35 grams of Cobalt (Co) to moles.

What is 0.59 moles of Co?

300

How many moles of O2 are required to react with 4 moles of methane?

CH4 + 2O2 --> CO2 + 2H2O

What is 8 moles?

300

What is the molecular formula of a compound comprising 36.4% carbon, 15.2% hydrogen, and 48.4% oxygen with a molecular mass of 132 amu?

What is C4H20O4?

300

Calculate the number of moles of NaBr formed when 50 moles of NBr3 and 57 moles of NaOH react.

2NBr3 + 3NaOH ---> N2 + 3NaBr + 3HOBr

What is 57 moles of NaBr?

400

FeCl3 + NaOH --> Fe(OH)3 + NaCl

What is 1 FeCl3 + 3 NaOH --> 1 Fe(OH)3 + 3 NaCl?

400

Convert 3.5 moles of tungsten (W) to grams.

What is 643.44 grams of W?

400

If you start with 331 grams of Pb(NO3)2, how many grams of PbI2 can be produced?

Pb(NO3)2 + 2KI --> 2KNO3 + PBI2

What is 461 grams of PbI2?

400

A compound containing 5.9265% H and 94.0735% O has a molar mass of 34.01468 g/mol. Determine the empirical and molecular formula of this compound.

What is the empirical formula = HO and the molecular formula = H2O2?

400

How many grams of aluminum chloride could be produced from 34.0 g of aluminum and 39.0 g of chlorine gas?

2Al + 3Cl2 ---> 2AlCl3  

What is 48.89 g AlCl3?

500

C8H18 + O2 --> CO2 + H2O

What is 2 C8H18 + 25 O2 --> 16 CO2 + 18 H2O?

500

Convert 54 grams of lithium (Li) to atoms.

What is 4.69 x 1024 atoms of Li?

500

What mass of oxygen gas will react with 96.1 grams of propane?

C3H8 (g) + 5O2 (g) ⟶ 3CO2 (g) + 4H2O (g)  

What is 349 g O2?

500

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?

500

How many grams of PF5 can be formed from 9.46 g of PF3 and 9.42 g of XeF4?

2PF3 + XeF4 ---> 2PF5 + Xe

What is 11.45 g PF5?

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