Worksheets1st 9 Week Review Part 2
Total questions: 30
Worksheet time: 58mins
The atomic number of an element is equivalent to its ___.
number of protons
number of neutrons
number of protons and neutrons
number of valence
All elements in the same group have the same number of ___.
valence electrons
energy levels
protons
atomic mass units
Referring to the periodic table, the element Oxygen (O) should have the most properties in common with ___.
Chlorine (Cl)
Sulfur (S)
Nitrogen (N)
Gold (Au)
In which direction do periods run on the periodic table of elements?
horizontal
vertical
zigzag
diagonal
In which direction do families or groups run on the periodic table?
horizontal
vertical
diagonal
zigzag
Students conducted an investigation on the properties of three elements. What type of element should sulfur be labeled?
Nonmetal
Metal
Metalloid
Undermetal
Sodium (Na) is a ___.
nonmetal
metalloid
gas
metal
Which of the following will most likely form a covalent bond?
A metal reacts with a nonmetal and their atoms gain electrons.
A nonmetal reacts with a metal and their atoms share electrons.
A metal reacts with a nonmetal and their atoms lose electrons.
A nonmetal reacts with a nonmetal and their atoms share electrons.
Which of the following is an ionic bond?
NaCl
CH4
SO
FCl
What happens when Lithium (Li) and Fluorine (F) form an ionic bond?
They share one pair of electrons.
Lithium (Li) loses one electron, and Fluorine (F) gains one electron.
Lithium (Li) gains one electron, and Fluorine (F) loses one electron.
Lithium (Li) and Fluorine (F) both lose one electron.
Which two elements have the same number of electron shells?
Potassium (K) and Sodium (Na)
Magnesium (Mg) and Sulfur (S)
Helium (He) and Neon (Ne)
Lithium (Li) and Argon (Ar)
Which of the following is true for Calcium (Ca)?
Its atomic number is 20, its atomic weight is 40.07, and it is in the same family as magnesium (Mg).
Its atomic number is 40.07, its atomic weight is 20, and it is in the same family as potassium (K).
Its atomic number is 20, its atomic weight is 40.07, and it is in the same family as potassium (K).
Its atomic number is 40.07, its atomic weight is 20, and it is in the same family as magnesium (Mg).
Which set of element pairs contains elements chemically similar to each other?
H and Mg
N and C
He and Ca
Ne and Kr
Which statement is true about all nonmetals EXCEPT for hydrogen?
They are all liquids at room temperature.
They are all found to the right of the zig-zag line on the Periodic Table.
They are all very reactive.
They are all found in nature in their pure (unbonded) form.
An element that has properties of both metals and nonmetal is a/an ___.
alkali metal
metalloid
halogen
transition metal
This number on the left represents how many molecules there are in a chemical formula.
How many iron (Fe) atoms are in this chemical formula?
Matter can be created.
Matter can be destroyed.
Matter can neither be created nor destroyed.
Matter does not change.
This is used to represent the number of atoms for an element in a chemical formula.
How many potassium (K) atoms are in 5K2CO3?
5
10
2
7
Is this balanced?
C2H4 + 2O2 → 2CO2 + 2H2O
Yes, all the elements are balanced.
No, Carbon is not balanced
No, Hydrogen is not balanced
No, Oxygen is not balanced
Is this balanced?
2Al + 3O2 → 2Al2O3
Yes, all the elements are balanced.
No, O is not balanced.
No, Al is not balanced.
Is this balanced?
4Al + 3O2 → 2Al2O3
Yes, all the elements are balanced.
No, O is not balanced.
No, Al is not balanced.
What are the reactants in this equation?
4Al + 3O2 → 2Al2O3
4Al
3O2
2Al2O3
4Al + 3O2
What are the products in this equation?
4Al + 3O2 → 2Al2O3
4Al
3O2
2Al2O3
4Al + 3O2
Balance this equation: ___ P4 + ___ H2 → ___ PH3
1, 6, 4
0, 5, 3
1, 4, 4
1, 1, 1
Which of the following correctly counts the atoms in 4HNO3?
1 hydrogen atom, 1 nitrogen atom, 3 oxygen atoms
4 hydrogen atoms, 1 nitrogen atom, 3 oxygen atoms
4 hydrogen atoms, 4 nitrogen atoms, 12 oxygen atoms
1 hydrogen atom, 4 nitrogen atoms, 12 oxygen atoms
Which of the equations is correctly balanced?
2Fe + 2Cl2 → 2FeCl3
SnO2 + H2 → Sn + 2H2O
2P + 3Cl2 → 2PCl3
Cl2 + 3NaBr → 3NaCl + Br2
The given chemical reaction shows the burning of methane gas in the presence of oxygen to give carbon dioxide and water. Which statement suggests why the reaction satisfies the law of conservation of matter?
The type of elements is the same on both sides of the reactions.
There are two types of reactants and two types of products in the reaction.
There are three molecules each on both sides of the reaction.
The number of atoms of each type is the same on both sides of the reaction.
