Chemistry Final Exam SG for Ms. Gallazzi's class

Question 1

Antoine Lavoiser discovered hydrogen

Accepted Answer

False

Question 2

P2O5&#13;is what type of compound?

Accepted Answer

A. Covalent

Question 3

When writing oxidation numbers, most often the element on the left is negative and the element on the right will be pos

Accepted Answer

False

Question 4

what group of soft metals can be easily cut with a pocketknife?

Accepted Answer

Alkali Metals

Question 5

Oxygen is the most abundant element by mass in the earth's crust

Accepted Answer

True

Question 6

To achieve an octet when combining metal with a nonmetal, the nonmetal would _____ electrons

Accepted Answer

Steal

Question 7

What type of reaction is occurring in this equation? 4Fe + 3O2 2Fe2O3

Accepted Answer

B. Combination

Question 8

Group of elements that are so reactive they never exist in nature by themselves?

Accepted Answer

Alkali Metals

Question 9

Which element has the highest electronegativity?

Accepted Answer

C. N

Question 10

Triple bonds share how many electrons?

Accepted Answer

6

Question 11

which type of bond has a transfer of electrons?

Accepted Answer

D. Ionic

Question 12

Why would 2 elements bonded share electrons equally?

Accepted Answer

Same electronegativity

Question 13

First person to arrange elements by atomic number

Accepted Answer

B. Moseley

Question 14

This element is referred to in the Bible as "Brimstone", meaning "Burning Stone".

Accepted Answer

sulfur

Question 15

What element is found in all living things?

Accepted Answer

Carbon

Question 16

When naming a compound, when is the ending –ic or –ous used?

Accepted Answer

B.acid

Question 17

The central atom in a lewis structure is usually the atom that is/has the?

Accepted Answer

B. Most single electrons

Question 18

The ammonium, chlorite, and hypobromite are all examples of?

Accepted Answer

D. Polyatomic ions

Question 19

What family or group will always have an oxidation number of +1?

Accepted Answer

A. Alkali metals

Question 20

Polar molecules have what type of ends?

Accepted Answer

Positive, Negative

Question 21

what is the oxidation number of H in MgH2?

Accepted Answer

-1

Question 22

series/period of elements(energy levels) arranged according/ similar properties due to similar electron configuration

Accepted Answer

True

Question 23

the electron-sea theory applies to what type of bond?

Accepted Answer

B. Metallic

Question 24

Which of the following is most likely to serve as the central atom and have FEWER than 8 valence electrons?

Accepted Answer

B

Question 25

Hydrogen is called what kind of air

Accepted Answer

inflammable

Question 26

The following compound, Al2&#13;(SO4&#13;)3 ● 3 H2O, is all these types of compounds except NOT?

Accepted Answer

B. Covalent

Question 27

Alkali metals and Transition metals tend to have multiple oxidation numbers

Accepted Answer

False

Question 28

which tyoe of bond has loose sharing electrons?

Accepted Answer

metallic

Question 29

The sum of all oxidation numbers in a compound must equal ____?

Accepted Answer

Zero

Question 30

the oxidation number of N2 is?

Accepted Answer

0

Question 31

metals bonding with metals form what type of bonds?

Accepted Answer

Metallic

Question 32

Barium is what group of elements?

Accepted Answer

Alkaline earth metals

Question 33

The sum of all oxidation numbers in an ion must equal the ion’s charge.

Accepted Answer

True

Question 34

what halogen was the last to be discovered?

Accepted Answer

fluorine

Question 35

28% of the atoms in the earth's crust are what element?

Accepted Answer

A. Silicon

Question 36

List 3 diatonic molecules

Accepted Answer

Nitrogen, Oxygen, Hydrogen

Question 37

The only metallic in the halogen family is antimony

Accepted Answer

False

Question 38

A pi bond has electrons in what orbital?

Accepted Answer

D. P

Question 39

what element makes up 78% of the earths atmosphere?

Accepted Answer

Nitrogen

Question 40

which metal has the most oxidation numbers?

Accepted Answer

Ru

Question 41

What determines if electrons are shared unequally between elements?

Accepted Answer

C. Difference in electronegativity

Question 42

If you dissolve salt in water, it becomes what?

Accepted Answer

D. Aqueous

Question 43

If the atoms below formed a compound, which one would be the central atom?

Accepted Answer

Silicon

Question 44

Aluminum and chlorine react, what would the formula be?

Accepted Answer

AICI3

Question 45

Nonmetals are the most reactive elements on the Periodic Table

Accepted Answer

False

Question 46

What compound would oxygen have a -1 oxidation number?

Accepted Answer

H2O2

Question 47

What two molecular shapes are always polar?

Accepted Answer

Bent, Pyramidal

Question 48

there is more than one way to display the distribution of bonds. This display of an intermediate character is called?

Accepted Answer

C. Resonance

Question 49

Chemical bonds between atoms involve the rearrangement of ___ to maximize stablility.

Accepted Answer

Electrons

Question 50

Pi Bonds can be found in what two types of bonds?

Accepted Answer

Triple, Double

Question 51

What is the angle of the bonds in a pure tetrahedral arrangement?

Accepted Answer

A. 109.5°

Question 52

When naming a compound, what is the ending used for a covalent compound?

Accepted Answer

D.-ide

Question 53

If a compound is an acid, it will start with what element?

Accepted Answer

Hydrogen

Question 54

Crystal ions conduct electricity when _______ or molten.

Accepted Answer

Dissolved

Question 55

John Newland arranged elements using the law of octaves

Accepted Answer

True

Question 56

A sigma bond has electrons in what orbital?

Accepted Answer

D. S

Question 57

Molecular shapes are largely determined by the repulsion of electron concentrations known as what theory?

Accepted Answer

B. Valence shell electron repulsion

Question 58

What family or group will always have an oxidation number of +2?

Accepted Answer

B. Alkaline earth

Chemistry Final Exam SG for Ms. Gallazzi's class

Questions 58

Chemistry Final Exam SG for Ms. Gallazzi's class

Questions 58