Topic 1-3 IB Chemistry SL
Authored by Sara Hammoutene
Chemistry
11th - 12th Grade
NGSS covered
Used 241+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which compound has the empirical formula with the greatest mass?
C2H6
C4H10
C5H10
C6H6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Under what conditions would one mole of methane gas, CH4, occupy the smallest volume?
273 K and 1.01×105 Pa
273 K and 2.02×105 Pa
546 K and 1.01×105 Pa
546 K and 2.02×105 Pa
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following quantities has units?
Relative atomic mass
Relative molecular mass
Molar mass
Mass number
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A reaction occurring in the extraction of lead from its ore can be represented by this unbalanced equation:
__ PbS + __O2 --> __ PbO + __ SO2
When the equation is balanced using the smallest possible whole numbers, what is the coefficient for O2?
1
2
3
4
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Methane, CH4, burns in oxygen gas to form carbon dioxide and water. How many moles of carbon dioxide will be formed from 8.0 g of methane?
0.25
0.5
1
2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the empirical formula of a compound containing 50% by mass of element X (Ar = 20) and 50% by mass of element Y (Ar = 25)?
XY
X3Y2
X4Y5
X5Y4
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the electron arrangement of silicon?
2.4
2.8
2.8.4
2.8.8
Tags
NGSS.HS-PS1-1
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