Science 10 Chemistry Unit Exam

Quiz
•
Chemistry, Science
•
10th Grade
•
Medium
+6
Standards-aligned
Justin Schiltroth
Used 46+ times
FREE Resource
80 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
When metal atoms form ions, they tend to
gain electrons and form positive ions
lose electrons and form positive ions
gain electrons and form negative ions
lose electrons and form negative ions
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What does this diagram represent?
a nickel ion
a silicon atom
a nickel atom
A. an oxygen ion
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Which number represents an element in the halogen family?
1
2
3
4
5
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Which number represents an element that can be classified as a metalloid?
1
2
3
4
5
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
An experiment shows that an unknown element does not easily lose or gain electrons. Which unknown represents this element?
1
2
3
4
5
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Which number corresponds to a metal that belongs to the most reactive group of metals on the periodic table?
1
2
3
4
5
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Potassium hydroxide and barium chloride react to produce barium hydroxide and potassium chloride. The balanced equation for this reaction is
KOH + BaCl2 ——> BaOH + KCl
K(OH)2 + 2 BaCl ——> 2 BaOH + KCl2
KOH + BaCl ——> BaOH2 + KCl
2 KOH + BaCl2 ——> Ba(OH)2 + 2 KCl
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