How many moles of Al would be produced from 20 moles of Al2O3?
2Al2O3 --> Al + 3O2
What is 10 moles
100
What is the gas law equation used when temperature is constant?
What is P1V1 = P2V2
100
a basic solution contains more of this, than hydrogen ions.
What is hydroxide ions.
100
Redox reactions involve the _______ of electrons
What is transfer
200
Which is the mass of 8 moles of sodium chloride?
What is 464g
200
Which is the correct mole ratio of K3PO4 to KNO3 in the chemical reaction
3Mg(NO3)2 + 2K3PO4 --> Mg3(PO4)2 + 6KNO3?
What is 1:3
200
A milkshake is sipped through a straw at 0.071 atm. The straw contains 5 mL of liquid. How much liquid is consumed at 0.092 atm?
What is 3.9 mL
200
the pH scale allows scientists to define the acidity of a substance on the scale of?
What is 0-14
200
Oxidation involves the ___ of electrons
What is loss
300
How many molecules of atoms are in one mole of AlPO4?
What is 6.022 x 1023 molecules
300
How many moles of KBr will be produced from 7 moles of BaBr2? (you must balance the equation first)
BaBr2 + K2SO4 --> KBr + BaSO4
What is 14
300
A balloon is filled with 3.5 L of water at 24 C and 2.27 atm. The balloon is placed outside and the temperature increases to 34 C. What will the volume of the balloon be.
What is 3.61 L
300
A solution that contains equal concentrations of hydrogen and hydroxide ions is
What is neutral
300
The oxidation number of oxygen is...
What is -2
400
How many grams are in 1.946 moles of NaCl?
What is 113.8 g
400
How many grams of water are produced when 2.50 mol oxygen reacts with hydrogen?
2H2 + O2 --> 2H2O
What is 90.0 g
400
At an ocean depth, a diver's lung capacity is 2.4 L. The air temp is 32 C and the pressure is 101.3 kPa, What is the volume of the diver's lungs at the same depth when the temperature is 21 C at a pressure of 141.2 kPa?
What is 1.66 L
400
A ___ is produced when a base accepts a hydrogen ion from an acid
What is conjugate acid
400
Unstable nuclei can break apart spontaneously changing the identity of the: atom, element, or compound
What is atom
500
How many molecules are in 3.6 grams of NaCl?
What is 3.7 x 1022
500
How many grams of bromine are required to react completely with 37.4 grams aluminum chloride?
2AlCl3 + 3Br2 --> 2AlBr3 + 3Cl2
What is 67g
500
What volume does .0685 mol of a gas occupy at STP?
What is 1.53 L
500
Identify the acid and conjugate base pair in the following : HF + H20 = H3O(+) + F-
What is HF : F-
500
A/An ____ agen is a substance that has the potential to cause another stubstance to be reduced.