Percent Composition
9th - 12th Grade
•8 Qs
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Percent Composition
Quiz
•
Chemistry
•
9th - 12th Grade
•
Hard
Standards-aligned
Christine Sudzina
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8 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent by mass of magnesium in MgO?
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent by mass of sodium in NaCl?
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent composition by mass of sulfur in the compound MgSO4 (gram formula mass = 120 g/mol)?
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent by mass of oxygen in MgO?
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
How many moles are there in 64 grams of O2?
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the percent composition on Oxygen in NO2? (rounded)
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Find the percent composition of Cu in CuBr2 .
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