WorksheetsChemistry Unit Test Review
Total questions: 39
Worksheet time: 2hrs 0mins
Which subatomic particle has a mass of almost zero (0.00055) amu, a negative charge, and is located outside of the nucleus?
(a)
Which subatomic particle has a mass of 1 amu, a neutral charge, and is located inside the nucleus?
(a)
Which subatomic particle has a mass of 1 amu, a positive charge, and is located inside the nucleus?
(a)
Identify the subatomic particles A, B, and C using the data table provided in the picture.
A-proton
B-neutron
C-electron
A-electron
B-proton
C-neutron
A-neutron
B-proton
C-electron
Briefly describe the structure of an atom. Be sure to include the terms nucleus, electron cloud, protons, neutrons, and electrons in your description.
What characteristic is the most important information to know when trying to determine a element's identity?
Atomic Number=Protons
Atomic Mass=Protons+Neutrons
Atomic Number=Neutrons
Identify the element using the Bohr model in the picture.
Oxygen
Fluorine
Nitrogen
Neon
Identify mystery elements A, B, and C using the data table.
A. Oxygen
B. Calcium
C. Aluminum
A. Phosphorus
B. Calcium
C. Silicon
A. Oxygen
B. Yttrium
C. Iron
A. Oxygen
B. Potassium
C. Aluminum
What characteristic determines an element's chemical properties such as reactivity?
Electrons
Protons
Valence Electrons
Neutrons
Which element shown below would be the least reactive?
Sodium
Neon
Chlorine
What is the name given to the vertical columns of elements on the Periodic Table?
(a)
What is the name given to the horizontal rows of elements on the Periodic Table?
(a)
Using the Periodic Table, identify two other elements that would have similar properties to Copper (Cu).
Using a Periodic Table, identify two elements that would have the same number of valence electrons as Carbon (C).
Using the Periodic Table, identify two elements that would have the same number of energy levels as Aluminum (Al).
What term describes a shorthand way to represent an element or compound using symbols for its elements?
Chemical Symbol
Subscript
Coefficient
Element Name
Identify the total number of elements in each chemical formula from the table in the picture.
A. 6
B. 1
C. 4
D. 1
A. 2
B. 1
C. 4
D. 1
A. 3
B. 1
C. 4
D. 2
The chemical formula for Copper Sulfate is shown in the picture. Check the boxes of all the elements that make up this compound.
Copper
Sulfur
Uranium
Oxygen
How many atoms of sulfur are represented in the chemical equation in the picture provided.
(a)
The picture represents the chemical formula for aspirin. How many atoms of each element are represented?
Carbon-18
Hydrogen-16
Oxygen-8
Carbon-9
Hydrogen-8
Oxygen-4
Carbon-11
Hydrogen-10
Oxygen-6
What term describes the elements or compounds present before a chemical reaction takes place?
Reactants
Products
What term describes the elements or compounds present after a chemical reaction takes place?
Reactants
Products
Matter cannot be created or destroyed. The mass of the products in a chemical reaction must equal the mass of the reactants. What law is this statement describing?
The Law of Conservation of Energy
The Law of Thermodynamics
Newton's Laws of Motion
The Law of Conservation of Mass (Matter)
According to the Law of Conservation of Mass, how many grams of water (H2O) should be present on the product side in the chemical equation?
(a)
Which of the following is not evidence that a chemical reaction has taken place?
Gas produced
Spontaneous color change
Change in energy (light or temperature)
Change in size and shape
Which category of elements is located on the "zig-zag" line or "staircase" on the Periodic Table? List 3 example.
Which category of elements is located on the right side of the Periodic Table? List 3 examples.
Which category of elements is located on the left side of the Periodic Table? List 3 examples.
Identify each category in the picture as Metals, Nonmetals, or Metalloids based on the information shown in the data table.
A. Metal
B. Metalloid
C. Nonmetal
A. Metalloid
B. Nonmetal
C. Metal
A. Nonmetal
B. Metalloid
C. Metal
In general, how do the properties of metals and nonmetals differ?
What term describes the type of change that results in the formation of new chemical substances?
Physical Change
Chemical Change
What term described the type of change in which the form of matter is alerted, but the substance is not transformed into a new substance.
Physical Change
Chemical Change
List 3 examples of physical changes that you encounter on a daily basis.
List 3 examples of chemical changes that you encounter on a daily basis.
Identify 2-3 physical properties of water (H2O).
What term describes the amount of mass in a given volume of a certain substance?
Mass
Volume
Density
Speed
Use the data table in the picture to determine whether each substance will float or sink when placed in water. (Remember that water has a density of 1.0 g/mL)
Copper-Float
Gasoline-Sink
Silver-Float
Baby Oil-Sink
Copper-Sink
Gasoline-Sink
Silver-Sink
Baby Oil-Sink
Copper-Float
Gasoline-Float
Silver-Float
Baby Oil-Float
Copper-Sink
Gasoline-Float
Silver-Sink
Baby Oil-Float
Mystery Substance A has a mass of 12 grams and a volume of 50 cm3. Which object in the table would be Mystery Substance A?
(a)
If you had a 200 gram sample of gold and a 7 gram sample of gold, how would the densities of the two samples compare?
The 7 gram sample would be less dense than the 200 gram sample of gold.
The 200 gram sample of gold and the 7 gram sample of gold would be the same density.
The 200 gram sample of gold would be more dense than the 7 gram sample of gold.
