Studied by 14 peoplea cation has a ____ charge and is _____ than the atoms in which they are formed
postive, smaller
an anion has a ____ charge and is _____ that the atoms in which they are formed
negative, larger
as you move down on a group on the radius ______
increases
as you move across a period the radius _____
decreases
as you move down a group the ionization energy and electronegativity ______
decreases
as you move across a period the ionization energy and electronegativity ______
increases
the measure of attraction that an atom has for electrons in chemical bonds
electronegativity
how many valence electrons are in the electron dot notation for boron?
3
would it be easier to remove
calculate the empirical formula for C: 36.7%, H: 8.22%, F: 38.7%, O: 16.3%
C3H8OF2
Balance the following equation: __Ca+__HCL = __CaCl2+___H2
Ca+2HCL=CaCl2=H2
synthesis reaction
when two or more substances combine to form one substance
decomposition
a single reactant breaks down to form two or more products
combustion
a compound reacts with oxygen forming heat and light
single replacement
a reaction where an element replaces the atoms of another element
double replacement
a reaction where two compounds cations switch places
succinic acid is a substance produced by lichens. It is composed of 40.68% carbon, 5.08% hydrogen, and 54.24% oxygen and has a molar mass of 118.1 g/mol. What is the empirical formula and the molecular formula.
C2H3O2= empirical, C4H6O4=molecular
determine the limiting reactant of the chemical equation: Fe2O3+C= Fe+ CO2 (unbalanced)
Carbon
Who made the foundation to the periodic table?
Dimitri Mendeleev
Who solidifies the patterns in the periodic table to make periodic law?
Henry Mosely
Where are Alkali Metals on the periodic table?
group 1
Where are alkaline earth metals?
group 2
where are transition metals?
group 3-12
where are halogens?
group 17
where are noble gasses?
group 18
Who used the cathode ray tube to discover electrons?
JJ Thomson
Who used the gold foil experiment to discover the nucleus and protons?
Ernest Rutherford
a.______ b._____ c.______
electrons, neutrons, protons
what is the mass number of an element equivalent to?
protons+neutrons
what is the electrons of an element equivalent to?
protons-electrons
atomic number
number of protons in the nucleus of an atom
ion
an atom of an element that has lost or gained electrons, but still maintains the same number of protons
isotope
an atom of an element that has the same number of protons but different numbers of neutrons
what is the electron configuration for argon
1s2, 2s2, 2p6, 3s2, 3p6
what is the noble gas notation for the electron configuration for krypton
[Ar], 4s2, 3d10, 4p6
Strontium has 4 isotopes with masses of: 84 (0.50% abundance), 87 (7%), 86 (9.9%), 88 (82.6%)
87.62
where are nonmetals on the periodic table
right side, C to Rn (and H)
where are metalloids
B down to Te
where are metals
left and middle side
find the energy used in the following equation: H2+F2= 2HF
-543kj (exothermic)
A metal weighting 59.047g was heated to 100C and then put it into 100ml of water (initially 23.7C). The metal and water were allowed to come to an equilibrium temperature of 27.8C. Calculate the specific heat of the metal.
q= .402J/g
A total of 54.0 Joules of heat are observed as 58.3g of lead is heated from 12.0°C to 42.0°C. From this data, what is the specific heat of lead?
Specific Heat (C): 0.03
this graph is ______, because it is _____ energy
endothermic, gaining
this graph is _____, because it is _____ energy
exothermic, losing
hydrogen bonds occur between what molecules and hydrogen?
N, O, F
what is the weakest intermolecular force?
London Dispersion Forces (LDF)
An ionic compound cannot conduct as a ____,but can when ____.
Solid, dissolved
An ionic compound has a ____ melting point
High
Naming acids:
If the polyatimic ion ends in -ate, change it to ____
–ic (she ATE but I have an IC)
Naming acids:
If the polyatomic ion ends in –ite, change the ending to ____
-ous
An ionic bond is between a metal and a _____
Nonmetal
A covalent bond is between two _____
Nonmetals
A gas occupies 12.3L at a pressure of 40 mmHg. What is the volume when the pressure is increased to 60mmHg?
8.2
The density of a gaseous fluoride of phosphorus is 3.98 g/L at STO. The is the molar mass of this fluoride?
88
“Likes dissolves likes” means…
Polar molecules dissolve polar, and non polar can dissolve non polar molecules
If a bond is non polar it will only what imf?
Ldf only
In order for a bond to be non polar it must have what three things?
1. Contain polar bonds (electro negativity difference)
2. All atoms identical
3. Symmetrical shape
AX4E0
Tetrahedral (symmetrical)
AX2E1
Bent (NOT symmetrical)
AX3E0
Trigonal planar (symmetrical)
AX2E0
Linear (symmetrical)
What imf would CH3Cl have? (Dipole dipole, hydrogen bond, ldf)
Dipole dipole (polar bonds)
A student needs to prepare a 75ml solution of .2M AgNO3. What mass of AgNO3 is needed?
2.55g
A teacher needs to prepare a 500ml, 1M solution of HNO3 from a solution of 12M HNO3. What would the volume of the solution need to be?
41.6ml
Calculate the PH of [H+] = 0.01M
2
Calculate the [H+] of pH=5.65
2.2*10^-6
Note 
Flashcard (26)