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TMSCA Chemistry #8

Authored by Victoria Burton

9th - 12th Grade

Used 13+ times

TMSCA Chemistry #8
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the percentage by mass of water in copper (II) sulfate pentahydrate?

80.0 %

62.4 %

41.9 %

36.0 %

19.4 %

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electron configuration of the oxide ion?

1s22s2

1s22s22p3

1s22s22p4

1s22s22p6

1s22s22p63s2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Place the following elements in order of increasing atomic radius

Na Mg N F Cl

F < N < Cl < Mg < Na

N < F < Na < Mg < Cl

Na < Mg < Cl < N < F

Cl < Mg < Na < F < N

N < F < Mg < Na < Cl

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which of the following does chlorine have the highest oxidation state?

NaCl

NaClO

NaClO3

Cl2

OCl2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the pH of the resulting solution when 1.0 L of a solution with pH = 3.0 is added mixed with 1.0 L of solution with pH = 5.0?

3.10

3.25

3.30

4.00

4.25

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these aqueous solutions would have the lowest freezing point?

1.0 L of 0.80 M CaCl2

0.50 L of 1.0 M NaCl

1.5 L of 0.50 M KCl

0.75 L of 0.75 M LiCl

2.0 L of 0.50 M MgCl2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the symbol of an atom with 8 protons, 9 neutrons, and 8 electrons?

168O

816S

916S

98O

178O

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