AnswersFoothill-B Period-Chemistry-2627BLab: Titration

Lab: Titration Answers

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Select the number of electrons each atom must gain or lose to have a full valence level. Use the periodic table if you need help.A calcium atom (Ca) will

A
gain 2 electrons.
B
lose 2 electrons.
C
lose or gain 4 electrons.
2
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A fluorine atom (F) will

A
gain 1 electron.
B
lose 1 electron.
C
lose 7 electrons..
3

A lithium atom (Li) will

A
gain 1 electron.
B
lose 1 electron.
C
gain 7 electrons.
4

An argon atom (Ar) will

A
gain 8 electrons.
B
lose 8 electrons.
C
not form an ion.
5

An aluminum atom (Al) will

A
gain 3 electrons.
B
gain 5 electrons.
C
lose 3 electrons.
6

Use the periodic table to find the charge of the ion that each atom is most likely to form. The charge of a sulfur (S) ion is

A
+2.
B
-2.
C
+3.
D
-3.
7

Question text not available

A
Each sodium atom loses one electron.
B
Each chlorine atom loses one electron.
C
Each chlorine atom gains two electrons.
D
The charge of the sodium ion in NaCl is +2.
E
The charge of the chloride ion in NaCl is -1.
8

The charge of a potassium (K) ion is

A
+1.
B
-1.
C
+4.
D
-4.
9

The charge of a boron (B) ion is

A
+2.
B
-2.
C
+3.
D
-3.
10

The charge of an iodine (I) ion is

A
+1.
B
-1.
C
+3.
D
-3.
11

The charge of a bromine (Br) ion is

A
+1.
B
-1.
C
+3.
D
-3.

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