Mastering Ionic Compounds Through The Criss-Cross Method
Interactive Video
•
Chemistry, Science, Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the criss-cross method primarily used for?
Writing formulas for ionic compounds
Balancing chemical equations
Calculating molar mass
Determining molecular shapes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct formula for calcium nitride using the criss-cross method?
Ca2N3
Ca3N2
CaN
CaN2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When using the criss-cross method, what is the charge of calcium in calcium fluoride?
3+
2+
0
1+
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for calcium fluoride?
CaF
CaF2
Ca2F
Ca2F3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge of the sulfate ion in calcium sulfate?
3-
1-
2-
4-
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many sulfate ions are needed to balance the charge in aluminum sulfate?
4
3
2
1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct formula for aluminum sulfate?
Al(SO4)2
AlSO4
Al2(SO4)3
Al3(SO4)2
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