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WorksheetsChemistry 1A Quiz Buster 2 T1 2021
Total questions: 15
Worksheet time: 1hrs 15mins
Which of the following compounds is insoluble?
NaNO3
AgCl
Pb(NO3)2
(NH4)2CO3
What is the oxidation number of sulphur in MgSO4?
+7
+6
-7
-6
Which element has the largest atomic radius?
F
Sr
Mg
Be
What is the molarity of a solution obtained by diluting a 25.0mL solution of 0.50M H2SO4 to 500mL?
0.05M
0.025M
0.25M
2.5M
Which of the following quantum numbers is impossible?
n = 2, l = 2, m = 0, s = - ½
n = 1, l = 0, m = 0, s = ½
n = 3, l = 2, m = -2, s = ½
n = 2, l = 1, m = 1, s = - ½
Which element has the smallest Zeff?
Ca
Li
Br
Ge
When balancing redox half equations, we balance ____ after balancing oxygens
Hydrogens
Non-hydrogen and non-oxygen atoms
Charges by removing electrons
None of the above
Which of the following is true regarding electronegativity?
F is less electronegative than oxygen
Cl is more electronegative than bromine
H is more electronegative than nitrogen
C is more electronegative than chlorine
Which of the following does not represent a redox reaction?
2H2O(g) -> 2H2(g) + 3O2(g)
2HCl(aq) + Pb(NO3)2(aq) à 2HNO3(aq) + PbCl2(s)
2Al(s) + 3H2SO4(aq) à Al2(SO4)(aq) + 3H2(g)
None of the above, they are all redox reactions.
Based on the activity series of metals, which reaction below will NOT occur?
2Au(s) + 2HNO3(aq)
Na(s) + 2CuCl2(aq)
Ba(s) + 2AgNO3(aq)
All of the above reactions will occur
What is the ground state electron configuration for Mg?
[Ne] 3s2
[Ar] 3s23p4
1s22s22p63s2
Both a and c
If I can have ml values of -2, -1, 0, 1, and 2, what is my l value?
3
2
1
0
What is the net ionic equation for 2Na(s) + 2HCl(aq) à 2NaCl(aq) + H2(g)?
2Na(s) + 2H+(aq) + 2Cl-(aq) -> 2Na+(aq) + 2Cl-(aq) + H2(g)
2Na(s) + 2HCl(aq) -> 2NaCl(aq) + H2(g)
2Na(s) + 2H+(aq) -> 2Na+(aq) + H2(g)
2HCl(aq) -> 2NaCl(aq)
Aluminium’s electron configuration is 1s22s22p63p2
True
False
How many moles of NaCl are present in 0.1L of a 250mM solution?
0.05mol
0.025mol
0.5mol
0.25mol
