a word which represents a number.
Like the word "dozen" represents the number 12,
represents the number 6 x 1023.
What is a mole
100
the calculation of relative quantities of reactants and products in chemical reactions.
What is Stoichiometry
100
Particles of any matter are in motion, possessing...
What is Kinetic Energy
100
a final product.
What is a soultion
100
a state in which opposing forces or influences are balanced.
What is an Equilibrium
200
How many moles of lithium (Li) are in 1 mole of lithium hydride (LiH)
What is 1 mole of lithium
200
How many liters of hydrogen gas would be needed to react with 2.3 g of nitrogen in order to produce ammonia (NH3) with no excess?
What is 5.5 L H2
200
What is meant by the term "vapor pressure"
What is the tendency for atoms or molecules to leave a solid or a liquid surface and become a vapor.
200
What is the molarity of a solution containing 5.035 grams of FeCl3 in enough water to make 500 mL of solution?
What is 0.062 M
200
.... has a lower Ph and .... has the highest
What is an acid and base
300
How many moles of sulfur are in 53.7 grams of sulfur?
What is 1.67 moles of sulfur
300
How many molecules of product would be produced from 24.7g Na?
What is 6.5 E23 NaCl molecules
300
What is it called when a solid changes directly into a gas?
What is Sublimination
300
mixtures without definite composition
What is a Heterogeneous mixture
300
stings or burns
What is acid feel like
400
How many moles of oxygen (O) are in 1 mole of calcium carbonate (CaCO3)?
What is 3 moles of oxygen
400
Oxygen gas can be produced by decomposing potassium chlorate using the reaction below. If 138.6 g of KClO3 is heated and decomposes completely, what mass of oxygen gas is produced?
KClO3 (s) --> KCl (s) + O2 (g)
What is 54.286 g O2 produced
400
an experimental gas law which describes how the pressure of a gas tends to decrease as the volume of a gas increases
What is Mariotts law
400
What mass of sucrose C12H22O11 is needed to make 300.0 mL of a 0.50M solution?
What is 1.6g/L at 1atm at 2.5 atm 4g/L
400
Calculate the molarity of an HCl solution if 30.8 mL of the solution is neutralized by 15.5 mL of 0.451 M NaOH
What is Number of moles / Volume in dm^3
=0.00699 / 0.0308
=0.227 mol/dm^3
500
How many moles of oxygen are in 2.71 x 1025 molecules of carbon dioxide (CO2)
What is 90 moles of Co2
500
In the reaction 2C8H18 + 25O2 --> 16CO2 + 18 H2O, the ratio of volumes of O2 to
What is 25:16
500
everything in earth plasma,gas liquid and solid
What is matter
500
How many grams of KMnO4 are required to prepare 1.0 L of a solution of 1.5 M KMNO4?
What is 237 grams of KMnO4
500
The solubility of lead (II) chloride (PbCl2) is 1.6 x 106-2 M. What is the Ksp of PbCl2?
What is saturated PbCl2 would form 1.6x10-2 M Pb+2 and 3.2x10-2 M Cl2. Ksp = [Pb+2][Cl-]^2