CHEMISTRY SEMESTER B FINAL EXAM
REVIEW EXAM QUESTIONS WITH 100%
CORRECT ANSWERS
What atoms follow the Duet role? - Correct answer-Li and Na
What type of bonding takes place between N and F? - Correct answer-covalent
How many electrons is an octet? - Correct answer-8
To draw the Lewis Structure of the polyatomic ion CIO2, you would have to ________ those in the
structures of Cl, O, O and O. - Correct answer-add one electron to
The correct Lewis structure for a molecule of the compound C2H2 contains - Correct answer-one triple
bond
Which of the following atoms has six valence electrons? - Correct answer-Sulfur
What is this structure for H2? - Correct answer-H-H
In a double bond, two electrons share a total of ______ electrons. - Correct answer-four
, Why does atomic radius increase as you go down a group? - Correct answer-Adding another principal
energy level where outermost electrons reside and shielding increases which decreases the effective
nuclear charge on the outer electron, this makes the atom bigger.
Why does atomic radius decrease across a row? - Correct answer-Protons are gained as you move from
the left to the right on the periodic table, this increases the pull of electrons that are all about the same
distance from the nucleus. Stronger attraction forces shrinks electrons orbitals and make atoms
smallerHow many moles of HCl are present in 0.70L of a 0.33 M HCl solution - Correct answer-0.23mol
What is the molarity of a solution that contains 125 g NaCl in 4.00 L solution? - Correct answer-0.535M
How much KCl can you dissolve in 200g of 40 C water according to figure 1? - Correct answer-80g
Which amount of KCIO3 dissolves in 100g of 30C water makes a saturated solution? - Correct answer-
10g
What is the molarity of a solution that contains 0.202 mol KCl in 7.98 L of solution? - Correct answer-
0.0253 M
The volume of 6.00M HCl needed to make 319 mL of 6.80M HCl is - Correct answer-362 mL
Dissolved in water to make 100 mL of solution, 1.00g of NaCl would have a concentration of - Correct
answer-0.171 M
An NaOH solution contains 1.90 mol of NaOH, and its concentration is 0.555 M. What is its volume -
Correct answer-3.42 L
In the reaction H3PO4 + H20 -> H30+ + H2PO4, the ion H2PO4 acts as a(n) - Correct answer-base
A water solution whose pH is 2 - Correct answer-is always acidic
A water solution whose pH is 12 - Correct answer-is always basic
REVIEW EXAM QUESTIONS WITH 100%
CORRECT ANSWERS
What atoms follow the Duet role? - Correct answer-Li and Na
What type of bonding takes place between N and F? - Correct answer-covalent
How many electrons is an octet? - Correct answer-8
To draw the Lewis Structure of the polyatomic ion CIO2, you would have to ________ those in the
structures of Cl, O, O and O. - Correct answer-add one electron to
The correct Lewis structure for a molecule of the compound C2H2 contains - Correct answer-one triple
bond
Which of the following atoms has six valence electrons? - Correct answer-Sulfur
What is this structure for H2? - Correct answer-H-H
In a double bond, two electrons share a total of ______ electrons. - Correct answer-four
, Why does atomic radius increase as you go down a group? - Correct answer-Adding another principal
energy level where outermost electrons reside and shielding increases which decreases the effective
nuclear charge on the outer electron, this makes the atom bigger.
Why does atomic radius decrease across a row? - Correct answer-Protons are gained as you move from
the left to the right on the periodic table, this increases the pull of electrons that are all about the same
distance from the nucleus. Stronger attraction forces shrinks electrons orbitals and make atoms
smallerHow many moles of HCl are present in 0.70L of a 0.33 M HCl solution - Correct answer-0.23mol
What is the molarity of a solution that contains 125 g NaCl in 4.00 L solution? - Correct answer-0.535M
How much KCl can you dissolve in 200g of 40 C water according to figure 1? - Correct answer-80g
Which amount of KCIO3 dissolves in 100g of 30C water makes a saturated solution? - Correct answer-
10g
What is the molarity of a solution that contains 0.202 mol KCl in 7.98 L of solution? - Correct answer-
0.0253 M
The volume of 6.00M HCl needed to make 319 mL of 6.80M HCl is - Correct answer-362 mL
Dissolved in water to make 100 mL of solution, 1.00g of NaCl would have a concentration of - Correct
answer-0.171 M
An NaOH solution contains 1.90 mol of NaOH, and its concentration is 0.555 M. What is its volume -
Correct answer-3.42 L
In the reaction H3PO4 + H20 -> H30+ + H2PO4, the ion H2PO4 acts as a(n) - Correct answer-base
A water solution whose pH is 2 - Correct answer-is always acidic
A water solution whose pH is 12 - Correct answer-is always basic
