Post on 30-Dec-2015
SOL 3
Chemistry SOL Review Day 2
UNIT 6 – Ionic BondingThe electrons in the outermost level or
shell are called the ________________ electrons.
ValenceAtoms want to be stable, which means
they try to achieve a ____________________ configuration.
Noble GasTo become an ion, atoms will
______________ or ________________ electrons.
Gain or lose
UNIT 6 – Ionic BondingWhat kind of ion does Calcium become?
2+A bromine ion (Br-) has ________ electrons and _______ protons.
36, 35A magnesium ion (Mg2+) has _________ electrons and _______ protons.
10, 12
UNIT 6 – Ionic BondingA cation is a _________ charged ion. PositivelyAn anion is a _____ charged ion. NegativelyIonic bonds form between ___ &_____.
Positive & negative ionsMetals & Nonmetals
UNIT 6 – Ionic BondingIonic compounds have ________ melting points because of the strong forces within.
HighAn alloy is a mixture of two __________.
Metals
UNIT 6 – Ionic BondingName the following ionic compounds.KBr K2O MgBr2
Cu(OH)2
Ca3(PO4)2
UNIT 6 – Ionic BondingWrite formulas for the following ionic compounds.Copper (I) oxygenAluminum oxideLead (IV) sulfideLead (IV) nitrideLithium chloride
2009 SOL QuestionHow many electrons does the iron ion have when it forms the ionic compound FeCl3?
F 20G 23.H 26J 29
UNIT 7 – Covalent BondingWhen two nonmetals join together, they form a covalent bond by __ their electrons.
SharingMost atoms that form covalent bonds connect so each atom has _____ valence electrons.
8
UNIT 7 – Covalent BondingName the 7 diatomic elementsName the following molecular compounds.N2OCO2
C2H6
H2SN2O4
UNIT 7 – Covalent BondingWrite the chemical formula for each of the following molecular compounds.Carbon monoxideDihydrogen monoxidePhosphorus trichlorideCarbon tetrahydrideDicarbon tetrahydride
UNIT 7 – Covalent BondingDraw the Lewis structure or structural formula of each of the following and determine its shape.SiCl4SCl2PF3
AsF5
BF3
UNIT 7 – Covalent BondingIf there is a LARGE difference in
electronegativity, it will result in a ____________ bond.
IonicA medium difference in electronegativity
will result in a _________ covalent bond.PolarA very small difference will result in a
____ covalent bond.Nonpolar
UNIT 8 – Chemical ReactionsThe chemicals used to start a chemical reaction are called the _____
ReactantsThe chemicals that come out of a reaction are the _____
ProductsIf something is written above the arrow, it is a _____
Catalyst
UNIT 8 – Chemical ReactionsBalance the following reactions.a. CuCl2 + H2S CuS + HCl
B. Fe + O2 Fe2O3
c. P + O2 P4O10
d. Na + H2O H2 + NaOHe. FeCl3 + CaOH Fe(OH)3 + CaCl
UNIT 8 – Chemical ReactionsClassify the following reactions (synthesis, decomp, SR, DR, or combustion)
4Fe + 3O2 2Fe2O3
2C6H14 + 19 O2 14 H2O + 12 CO2
2AlCl3 2Al + 3 Cl2Zn + H2SO4 Zn SO4 + H2
AgNO3 + NaCl AgCl + NaNO3
UNIT 9 – Molar ConversionsThe _____ is the lowest whole number ratio of elements in a compound.
Empirical formulaThe __________ formula is the actual ratio of elements in a compound.
Molecular formula
UNIT 9 – Molar ConversionsWhat is the empirical formula of C6H12O6?
CH2OWhat is the empirical formula of C3H6? CH2A compound has an empirical formula of ClCH2 and a molar mass of 148.44 g/mol. What is its molecular formula?
Cl3C3H6
UNIT 9 – Molar ConversionsCalculate the percent composition of sodium in sodium chloride (NaCl).
23/(23 + 35.5) = 39%1 mole = how many particles?6.022 x 1023
How many atoms of oxygen are in a 17.3 g sample?
6.51 x 1023