
Magnesium Phosphate and Polyatomic Ions
Interactive Video
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Chemistry
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9th - 10th Grade
•
Practice Problem
•
Hard
Jackson Turner
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the element symbol for magnesium?
Mg
Mo
Ma
Mn
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a polyatomic ion?
Mg
O2
PO4
Cl
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of compound is formed when a metal and nonmetals combine?
Molecular
Metallic
Ionic
Covalent
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ionic charge of magnesium in group two of the periodic table?
2+
1+
4+
3+
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge of the phosphate ion?
4-
1-
2-
3-
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What method is used to balance the charges in magnesium phosphate?
Substitution
Cross-multiplication
Addition
Crisscross
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do we use parentheses around the phosphate ion in the formula?
To separate it from magnesium
To balance the equation
To show it is a polyatomic ion
To indicate it is a metal
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