the test the test the test one day more. congratulations to our buffs deon, maurice, and darius....
TRANSCRIPT
THE TEST THE TEST THE TEST
One Day More
Congratulations to our BUFFS
Deon, Maurice, and Darius.
Dreams are a very sensitive thing. You whisper and they collapse.
Tread softly with patience, and you will feel, dreams touch you as they pass.
Which of the following represents a chemical change?
Low pH
A gas is formed
Color
A substance is dissolved
Glucose has the formula C6H12O6. Glucose is a ….
Mixture
Element
Compound
Gas
Which of the following elements has the smallest atomic radius?
Sulfur ChlorineAluminum Sodium
Which is the ground state electron configuration for SCANDIUM (Sc #21)
[Ar] 4s23p1 [Ar] 4s24p1
[Ar] 4s23d1
What is the Charge of Chromium in the formula Cr2O3?
Cr2O3
Cr3+
Which Element combines with Chlorine in order to form an ionic Bond?
Lithium
Carbon
Phosphorus
Bromine
Compounds that are composed of Ions……
Are molecular
Are Crystalline solids at room temperature
Two or more metallic elements
All of the above
The Cation Fe3+ is formed when….
Iron loses 2 electrons
Zinc loses 2 electrons
Iron loses 3 electrons
Iron gains 3 electrons
When a transitional metal has more than one possible charge, that charge is indicated by….
EXAMPLE Iron (II) Oxide FeO
PrefixSuffixRoman Numeral following the metal’s nameSuperscript after the name
Metals are good conductors because they…..
Form LatticesContain Positive IonsContain mobile Valence ElectronsForm Ionic bonds
Which of the following does not exist as a diatomic molecule?
Diatomic means ______ atoms
I (Iodine)F (Fluorine)H (Hydrogen)He (Helium)
Which is NOT covalent?
Covalent bonds are between ____________And ionics are between______and _______.
SCl2KClHClS2Cl2
Which diatomic molecule has a triple covalent bond?
N2
Br2
H2
O2
In sea of electrons
Electrons are stationaryElectrons are bondedSome are mobile, some are notMobile electrons are shared by all atoms
The Dot structure of HCl
The Line Structure of Water H20
Atoms share electrons in order to acquire the electron configuration of ….(meaning, they try to be like)
Alkali metals
Alkaline earth metals
Halogens
Noble gases
How many double covalent bonds are there in C02
1
2
3
4
Shape of NH3
Trigonal Pyrimidal
Shape of CH4
Tetrahedral
Which of the following is a polar covalent bond
H2O
MgCl2
CaO
HF
What type of bond would you expect in LiF
Ionic
Polar Covalent
Nonpolar Covalent
None of the above
In a binary molecular compound, the number of atoms are indicated by the…
Roman Numberal
Superscripts
Prefixes
Suffixes
What is the formula for Sulfuric Acid
HSO4
H2S2
H2SO4
H2S
What is the formula for Aluminum Oxide?
Al203
Carbon Tetrachloride
CCl4Tetrahedral
Group 6A (Group 16) has how many valence electrons?
2468
Dot configuration for CO2
Which is the most electronegative element?
Selenium NeonPhosphorus Chlorine