Chemistry Final 2021 Exam Review

Chemistry Final 2021 Exam Review

by Israel Iyoke

Fill in the Blanks

Multiple Choice

How many significant figures are in 1.230?

• 1

• 2

• 3

• 4

Multiple Choice

Write 12300 in scientific notation?

• 1.23 x $$10^4$$

• 1.2300

• 1.2300 x $$10^3$$

• 1 x $$10^3$$

Multiple Choice

All of the following are physical properties EXCEPT:

• Flammability

• Length

• Melting Point

• Conductivity

Multiple Choice

Which of the following is true about melting point?

• It is a physical property

• It is the temperature at which solids turn into a liquid.

• It is an intensive property

• All of the above.

Multiple Choice

Which of the following properties is an extensive property?

• Boiling Point

• Density

• Color

• Volume

Multiple Choice

Which of the following is an example of a physical change?

• Glass shattering

• Rusting of Iron

• Bubbles forming in a solution

• Heat is released when Al reacts with CuCl₂

Multiple Choice

Which of the following is an example of a chemical change?

• Water boils at 100°C

• Precipitate is formed when two solutions are mixed

• Salt dissolves in water

• All of the above.

Multiple Choice

All of the following are transition metals in Period 4 EXCEPT:

• Gallium

• Chromium

• Vanadium

• Titanium

Multiple Choice

All the elements below share the same chemical properties as Sodium (Na) EXCEPT:

• Li

• Mg

• Cs

• Rb

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Multiple Choice

The isotope that will balance the following nuclear reaction is:

 ⁹⁹₄₃Tc → _____ + ⁰₋₁e

• ⁹⁹₄₂Mo

• ⁹⁹₄₃Ru

• ⁹⁹₄₄Ru

• ⁹⁹₄₁Mo

Multiple Choice

All of the following are pure substances with the exception of:

• water (H₂O)

• hydrogen (H₂)

• carbon dioxide (CO₂)

• air (N₂, O₂, CO₂ and Ar)

Fill in the Blanks

Multiple Choice

Which of the states of matter do NOT have a definite volume?

• solid only

• liquid only

• solid and liquid

• gas only

Multiple Choice

Which element below will lose electrons when forming an ion?

• Chlorine (Cl)

• Nitrogen (N)

• Oxygen (O)

• Sodium (Na)

Fill in the Blanks

Multiple Choice

What compound below is an example of a covalent compound?

• NaCl

• KI

• CH₄

• FeO

Multiple Choice

What compound below is an example of an ionic compound?

• H₂O

• MgI₂

• NCl₃

• PH₃

Multiple Choice

The name for the IONIC compound AlBr₃ is:

• Aluminum Bromide

• Aluminum (III) Bromide

• Aluminum Bromine

• Bromine Aluminide

Multiple Choice

The name for the COVALENT compound NO₂ is:

• Nitride Dioxide

• Mononitrogen Dioxide

• Nitrogen Oxide

• Nitrogen Dioxide

Multiple Choice

The formula for the COVALENT compound is Phosphorus Trichloride:

• PCl₃

• PCl

• Cl₃P

• P₃Cl

Multiple Choice

The formula for the IONIC compound Potassium Oxide is:

• K₂O

• KO₂

• KO

• K₂O₂

Multiple Choice

The formula for the IONIC compound Calcium Phosphide is:

• Ca₃P₂

• Ca₂P₃

• CaP

• CaPO₄