Chemistry Midterm Review

Chemistry Midterm Review

Multiple Choice

Who created the periodic table of elements?

• Albert Einstein

• Dmitri Mendeleev

• George Washington Carver

• None of the above

Multiple Choice

Horizontal rows on the periodic table are known as

• Period

• Groups

• Valence

• Isotopes

Multiple Choice

There is __ number of groups on the periodic table.

• 16

• 17

• 18

• 19

Multiple Choice

There is __ number of periods on the periodic table.

• 7

• 8

• 9

• 6

Multiple Choice

Vertical columns on the periodic table are known as

• Periods

• Groups

• Valences

• Isotopes

Multiple Choice

_____ are poor conductors of electricity and heat.

• Metals

• nonmetals

• metalloids

• semiconductors

Multiple Choice

_____ are good conductors of heat and electricity.

• Metals

• Non-Metals

• Metalloids

• Semiconductor

Multiple Choice

Oxygen is in group __ and period __

• 2, 16

• 1, 18

• 3,14

• 4, 8

Multiple Choice

What quantities vary between isotopes of an element?

• protons, electrons, and atomic mass
• protons, electrons, and atomic number
• neutrons and electrons
• neutrons and atomic mass

Multiple Choice

How many neutrons in C-14?

• 6
• 7
• 14
• 8

Multiple Choice

How many neutrons does an atom of the isotope Neon-22 have?

• 12
• 10
• 22
• 20

Multiple Choice

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Multiple Choice

How many neutrons are found in the element Argon

• 40

• 18

• 22

• 21

Multiple Choice

How many protons are found in the element Nickel?

• 28

• 46

• 59

• 31

Multiple Choice

What is the chemical symbol for Lithium?

• H
• He
• Li
• N

Multiple Choice

The number at the top of each square on the periodic table is the ...

• atomic number
• atomic mass
• Chemical Symbol
• Element Name

Multiple Choice

The number at the bottom of each square on the periodic table is the ...

• atomic number
• atomic mass
• chemical symbol
• element name

Multiple Choice

The nucleus of an atom is made of

• Protons and electron

• Protons and neutron

• Neutrons and electron

• Protons, neutrons, and electrons

Multiple Choice

Is this ionic bond drawn correctly?

• Yes
• No

Multiple Choice

How are ionic bonds formed?

• Transfer of electrons
• Sharing of electrons

Multiple Choice

How are covalent bonds formed?

• Sharing of electrons
• Transfer of electrons

Multiple Choice

Atoms are most stable when their outer shell is complete.

• true
• false

Multiple Choice

Ionic bonds are between...

• Metal and Non-metal
• Non-metal and Non-metal
• Metal and Metal

Multiple Choice

Covalent bonds are between...

• Metal and Non-metal
• Non-metal and Non-metal
• Metal and Metal

Multiple Choice

Valence electrons are found

• in the innermost energy level of an atom

• in the middle energy levels of an atom

• in the outermost energy levels of an atom

Multiple Choice

What reaction has the following general formula:
$$C_xH_y\ +\ O_2\ ->CO_{2\ }+\ H_2O$$  

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

Multiple Choice

What reaction has the following general formula:

AB + CD --> CB + AD

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

Multiple Choice

3 Pb + 2 H₃PO₄ ----> 3 H₂ + 1 Pb₃(PO₄)₂

• Synthesis (or combination)

• Decomposition

• Single replacement

• Double replacement

Multiple Choice

Pb(NO₃)₂ --> PbO + NO₂ + O₂

• Synthesis (combination)
• Decomposition
• Single replacement
• Combustion

Multiple Choice

Si + S₈ --> Si₂S₄

• Synthesis (combination)
• Decomposition
• Single replacement
• Double replacement

Multiple Choice

This pictures simulates what type of reaction?

• Synthesis
• Decomposition
• Single Replacement
• Double Replacement

Multiple Choice

One element replaces another in a compound.

• Synthesis
• Combustion
• Single Replacement
• Double Replacement

Multiple Choice

Breaking down a substance into simpler substances

• Displacement
• Synthesis
• Decomposition
• Oxidation

Multiple Choice

Combining substances to form a new substance

• Displacement
• Synthesis
• Decomposition
• Oxidation