What is analytical, physical, biochemical, organic, inorganic
100
A definition for isotope
What is an atom of the same element that has a different number of neutrons.
100
Avogadro's number
What is 6.022*10^23 representative particles
100
What is a precipitate?
What is a milky/solid substance forming after 2 clear liquids are mixed together.
100
Empirical Formula
What is the lowest whole number ratio
200
Find the density of a substance that has a mass of 200g at standard temperature and pressure.
What is 8.93g/ml
200
Tell us the P, N, E, atomic mass, and atomic number of Silver- 107
What is
P= 47
E=47
N= 60
Atomic number= 47
atomic mass= 107
200
Find the molar mass of H2O
What is 18.0148g
200
Name the 5 types of chemical reactions.
What is single replacement, double replacement, synthesis, combustion, decomposition
200
Define Density?
What is how compact particles are
300
Classify this substance: Salt and sand
What is a heterogeneous mixture.
300
Name these two compounds:
a) PH3
b) CuCl2
What is
a) phosphorus trihydride
b) Copper II chloride
300
Find the volume in liters of hydrogen with a mass of 10g.
What is 222.24L
300
Balance the following reaction:
___H2 + ____SO2 -> ____H2S + ____H2O
What is
3, 1, 1, 2
300
Define: Homogeneous mixture
What is a evenly mixed mixture
400
The law of conservation of mass
What is the neither created nor destroyed
400
Name all 5 atomic models in order from oldest to most recent.
What is Dalton, Thompson, Rutherford, Bohr, Quantum mechanical (electron cloud) model
400
Find the empirical formula of 32.0g of bromine and 4.9 g of magnesium.
What is Br2Mg
400
Stoich: How many moles of hydrochloric acid are needed to completely react with 4.0 moles of lead?
__Pb + ___H2 -> ___PbCl2 + __H2
What is 8 moles.
400
Define AMU
What is atomic mass unit
500
Name the 4 rules for significant figures
What are
1) 0's btwn non 0 #'s count
2) 0's in front of non 0 #' don't count
3) 0's @ the end of a # and also to the right of the decimal count
4) 0's @ the end of a # to the left of a decimal count
500
Name the charges associated with each group on the periodic table. ex: group 1A = +1 charge
What is
+1 +2 +3______ -3 -2 -1
500
Convert 5.35L of hydrogen gas (diatomic) to grams of hydrogen gas.
What is 4.72 * 10^-1
500
Stoich: How many liters of gas will be produced if 2.5 moles of calcium hydride react according to the following equation?
1 CaH2 + 2 H2O -> 1 Ca(OH)2 + 2 H2
What is 112 L of H2.
500
Define Stoichiometry
What is the process of determining how much product is made from a balanced reaction.