Math quiz practice
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
Loretta Salerno
Used 3+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of moles of hydrogen atoms contained in 1 mole of 2(NH4)2C2O4?
8
16
2
4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of atoms present in 3Mg2(NO3)2?
5
10
8
30
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The ratio of Iron to sulfur is Al2O3, is
2 grams of Aluminum to 3 grams of Oxygen
3 grams of Aluminum to 2 grams of Oxygen
2 moles of Aluminum to
3 moles of Oxygen
3 moles of Aluminum to 2 moles of Oxygen
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of oxygen atoms in the formula MgSO4 • 7 H2O?
11
7
5
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The formula mass of a compound is the
products of the atomic numbers of its atoms
sum of the atomic numbers of its atoms
sum of the atomic masses of its atoms
product of the atomic masses of its atoms
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The molar mass of Ba(OH)2 is
154.3 g
171.3 g
155.3 g
308.6 g
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The total number of moles represented by 2.0 grams of CaCO3 is
0.02
0.1
2
1
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