
Ionic Compounds and Carbonate Ions

Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Sophia Harris
FREE Resource
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of compound is formed when potassium, a metal, combines with carbonate, a group of nonmetals?
Ionic compound
Molecular compound
Covalent compound
Metallic compound
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge of a potassium ion when it is part of an ionic compound?
0
+1
-1
+2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge of the carbonate ion (CO3) in the reaction?
+2
+1
-2
-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to solid potassium carbonate when it is placed in water?
It remains unchanged
It evaporates
It forms a precipitate
It dissociates into ions
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many potassium ions are produced when potassium carbonate dissociates in water?
Four
Three
Two
One
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the notation 'aq' signify in a chemical equation?
The substance is a solid
The substance is a gas
The substance is a liquid
The substance is dissolved in water
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it unnecessary to write H2O on the product side of the equation?
Because it is a solid
Because the ions are dissolved in water
Because it is a gas
Because it is a reactant
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final equation for the reaction between potassium carbonate and water?
K2CO3 + H2O → K2 + CO3 + H2
K2CO3 + H2O → KOH + CO2
K2CO3 + H2O → 2K+ + CO3 2-
K2CO3 + H2O → K2CO3 + H2O
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