The SI unit used to measure representative particles, and the number of representative particles each one contains.
What is the mole, 6.02 x 1023 particles per mole?
100
What is the law of conservation of mass?
What is "In any chemical reaction, mass is neither created nor destroyed." AKA the mass of reactant = the mass of product.
100
Name at least three parts of kinetic molecular theory.
What is
-particles of a gas move independently of each other
-particles of a gas move rapidly
-particles of a gas are relatively far apart
-particles of a gas experience elastic collisions
100
What type of bond holds water together in the liquid state?
What is hydrogen bond?
100
What is the pH? Use words, not a formula.
What is "the negative logarithm of the hydrogen ion concentration"?
200
Of the following, which is an empiricalformula?
H2O
H2O4
H2O2
H4O2
What is H2O?
200
Name two types of molecules that are always present as reactants in a combustion equation.
What is a hydrocarbon and oxygen?
200
If a balloon is heated and the volume stays the same, what happens to the pressure inside the balloon?
What is "it increases"?
200
In terms of chemical reactions, what is chemical equilbrium?
It means that the rates of the forward and backwards reactions are equal.
200
A substance that can donate a pair of electrons is classified as what type of acid or base?
What is a Lewis base?
300
The first conversion step in most stoichiometry problems.
What is "convert the given to moles"?
300
Fill in the coefficients in the following reaction:
____Al2(SO4)3 + _____Ca(OH)2 → _____Al(OH)3 + ______CaSO4
What is 1Al2(SO4)3 + 3Ca(OH)2 → 2Al(OH)3 + 3CaSO4
300
What does the ideal gas law do for you that none of the others do?
What is "allow you to calculate/work with moles"
300
What type of mixture is characterized by the settling of particles?
What is a suspension?
300
What type of reaction is the following:
Zn2+ + 2e--->Zn
What is reduction?
400
This type of reactant determines how much product is made, while this other type of reactant is left over at the end of the equation.
What is limiting reactant and excess reactant?
400
Balance the following combustion reaction:
_____C5H12 + _____O2 --> ???
What is C5H12 + 8O2 --> 5CO2 + 6H2O
400
The direct change of a substance from a solid to a gas is called what?
What is sublimation?
400
What can you do to a solution to make the solute dissolve faster?
What is agitate (stir) the solution, heat the solution, decrease the particle size, or decrease the number of particles.
400
The oxidation number of sodium in sodium chloride is...
What is +1.
500
Consider the reaction of copper sulfate with zinc metal: CuSO4 + Zn --> Cu + ZnSO4 2.9 g Zinc will produce what mass copper?
What is ~2.85 g Cu?
500
Predict the products and balance the following reaction.
Na2S + 2HI --> ???
What type of reaction is it?
What is Na2S + 2HI --> 2NaI + H2S
double replacement reaction
500
"Where" can a substance exist as a solid, liquid, and a gas all at the same time?
What is the triple point?
500
Boiling point elevation, vapor pressure lowering, and freezing point depression are all examples of what type of property that depends on the number of solute particles?
What is colligative property?
500
You are given the concentration of hydroxide ions in a solution and to calculate the pH of the solution. What two formulas do you use to figure this out?