Randomness
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.
What is mole ratio?
__CO2 + __LiOH --> __Li2CO3 + __H2O
Using the unbalanced equation above, how many moles of lithium hydroxide are required to react with 20 mol of CO2?
What is 40 mol LiOH?
__Mg + __HCl --> __MgCl2 + __H2
Using the unbalanced equation, how many moles of hydrogen will be produced if we start with 0.2 grams of hydrochloric acid?
What is 0.002 moles?
6CO2 + 6H2O --> C6H12O6 + 6O2
How many grams of water are required if a plant needs to make 12.6 grams of C6H12O6 (glucose)?
What is 7.55 grams of water?
What volume will 0.0872 moles of CH4 occupy at STP?
22.4L = 1 mol
What is 1.95L CH4?
Is the compound below ionic or covalent?
H2SO4
__CO2 +__H2O --> __C6H12O6 + __O2
Using the unbalanced equation above, how many moles of carbon dioxide are needed to react with 3.25 mol of water in the reaction described above?
What is 3.25 mol CO2?
__Mg + __HCl --> __MgCl2 + __H2
Using the unbalanced equation above, how many moles of MgCl2 will 2.5 grams of Mg produce?
What is 0.027 moles of MgCl2?
2KClO3 --> 2KCl + 3O2
How many grams of KCl are produced if 5.0 g of KClO3 is decomposed?
What is 3 g KCl?
Surprise for 400 points, what is Avogadro's number?
What is 6.022 x 1023?
What is mass can neither be created nor destroyed in a chemical reaction only rearranged? What is there must be the same amount of atoms of each element on each side? (you must start and end with the same things)
__Mg +__O2 --> __MgO
Using the unbalanced equation above, how many moles of magnesium oxide are produced from 1.2 moles of magnesium?
What is 1.2 mol MgO?
__H2SO4 + __NaOH --> __Na2SO4 + __H2O
Using the unbalanced equation above, how many moles of H2SO4 are needed to react with 1.00 g of NaOH?
What is 0.012 moles of H2SO4?
K2CrO4 + Mg(NO3)2 --> 2KNO3 + MgCrO4
How many grams of potassium chromate are required to make 65.00g of magnesium chromate?
What is 89.96 grams of potassium chromate?
How many moles are present in 2.95 moles of NH3?
22.4L = 1 mol
What is 66.08 L NH3?
What is the electron configuration and Bohr model of Iodine?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5
__C2H6 + __O2 --> __CO2 + __H2O
Using the unbalanced equation above, how many moles of oxygen are required if 4.50 moles of C2H6 are used?
What is 15.75 moles of O2?
Ammonia decomposes to produce nitrogen and hydrogen gases. How many grams of H2 can be formed by the decomposition of 0.145 moles of ammonia?
What is 0.439 g of H2?
K2CrO4 + Mg(NO3)2 --> 2KNO3 + MgCrO4
How many grams of potassium nitrate should be produced with 65.00 g of magnesium chromate?
What is 23.42 grams of potassium nitrate?
Surprise for 800 points write the complete balanced equation for the following reaction (include states): When lithium hydroxide pellets are added to a solution of sulfuric acid, lithium sulfate and water are formed.
What is: 2LiOH (s) + H2SO4 (aq) --> Li2SO4 (aq) + 2H2O (l)
How many liters of O2 are needed to react with 0.234 grams of SO2 gas at STP?
2SO2 + O2 --> 2SO3
*hint: grams to moles, moles to moles, moles to L
What is 0.0409 L O2?
Hydrogen and oxygen gases react under a specific set of conditions to produce water. How many moles of oxygen would be required to produce 5.0 moles of water?
What is 2.5 mol O2?
Aluminum oxide reacts with iron to form Fe3O4 and Aluminum. How many grams of Fe3O4 would be formed if 0.5 moles of Fe reacted?
What is 125.76 grams of Fe3O4?
6CO2 + 6H2O --> C6H12O6 + 6O2
How many grams of CO2 were consumed when a plant consumed 36 g of water?
What is 87.97 g of CO2?
How many liters of oxygen gas at STP are required to react with 1.30 moles of Mg?
2Mg + O2 --> 2MgO
22.4 L = 1 mol
*hint: moles to moles and then moles to L
What is 14.6 L O2?