
Dissolving CaCl2 in Water Concepts

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

Jackson Turner
FREE Resource
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the charges of calcium and chlorine when CaCl2 is added to water?
Both calcium and chlorine become positively charged.
Both calcium and chlorine become neutral.
Calcium becomes positively charged and chlorine becomes negatively charged.
Calcium becomes negatively charged and chlorine becomes positively charged.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of ions are formed when CaCl2 is dissolved in water?
Hydrogen ions
Ionic ions
Metallic ions
Covalent ions
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge of the calcium ion in the solution?
2+
2-
1+
1-
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the coefficient of Cl- ions in the dissociation equation of CaCl2?
1
4
2
3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do chemists write 'aq' after ions in a solution?
To specify the ions are in a liquid state.
To denote the ions are solid.
To show the ions are dissolved in water.
To indicate the ions are in a gaseous state.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the equation for CaCl2 in water represent?
A biological process
A nuclear reaction
A physical change
A chemical reaction
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if the solution of CaCl2 in water is left out?
The solution becomes acidic.
The solution turns into a gas.
The water evaporates, leaving CaCl2 behind.
The solution becomes more concentrated.
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the process of dissolving CaCl2 in water often classified?
As a chemical reaction
As a nuclear change
As a physical change
As a biological change
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