Science
9th - 12th Grade
NGSS covered
Used 28+ times
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15 questions
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1.
FILL IN THE BLANKS QUESTION
1 min • 5 pts
Find the mass in grams of molecules of fluorine gas.
(a)
2.
MULTIPLE SELECT QUESTION
1 min • 4 pts
Which of the following have the same empirical formula? (Check all that apply)
C6H12O6
C4H8O4
C3H9O3
C4H10O2
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
What is the molar mass of Mg(OH)2
41 g/mol
58 g/mol
73 g/mol
98 g/mo
4.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
What is the mass of one mole of Al2(SO4)3?
5.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
How many moles are present in 32.3 grams of CO2? (Hint: the molar mass of CO2 is 44.01 g/mol)
44.01 moles
1421.52 moles
32.3 moles
0.73 moles
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Find the percentage composition of P in Mg3(PO4)2.
27.74% P
23.57% P
43.62% P
12.63% P
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
How many atoms of Ca make up 5.17 moles of Ca?
3.1 x 1024 atoms
6.02 x 1024 atoms
1.2 x 1024 atoms
2.4 x 1024 atoms
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