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