Chemical Building Blocks

Quiz
•
Chemistry
•
12th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A balloon contains 6.02 x 1023 of gas particles. What is the number of moles of the gas in the ballon?
0.5 mol
1.0 mol
3.0 mol
6.0 mol
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The mass of eight atoms of element X is equal to the mass of two silicon atoms. X is not the actual symbol of the element. What is the relative atomic mass of element X ?
[Relative atomic mass: Si= 28]
3.5
7.0
14.0
28.0
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The relative molecular mass of K3M(CN)6 is 329. What is the relative atomic mass of element M?
[Relative atomic mass: K= 39, C=12, N=14]
56
134
186
264
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the number of atoms in 1.5 moles of sulphur dioxide, SO2 ? [ Avogadro constant= 6.02x 1023 mol-1]
6.02x1023
1.5x 6.02x 1023
1.5 x 2 x 6.02x 1023
1.5 x 3 x 6.02 x 1023
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement explains that carbon-12 was chosen as a standard reference for relative atomic mass?
Carbon forms covalent bonds with other elements
Carbon atoms has four valence electrons
Carbon is a solid which is easier to handle
Among the three isotopes carbon-12, carbon-13 and carbon-14, carbon-12 is the lightest.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following gases contains 0.6 mole of atoms at room temperature and pressure?
[ Molar volume of gas= 24 dm3mol-1 at room condition]
4.8 dm3 of neon
4.8 dm3 of nitrogen
4.8 dm3 of sulphur trioxide
4.8 dm3 of carbon dioxide
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much is the mass of nitrogen that is contained in 3.01 x 1023 molecules of nitrogen ?
[ Relative atomic mass: N=14, NA=6.02x 1023 mol -1]
4 g
8 g
14 g
28 g
Tags
NGSS.HS-PS1-7
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