Font size
WorksheetsChemistry (Mixed)
Total questions: 28
Worksheet time: 32mins
What are the units for molar mass?
g
amu
g mol-1
L
How many moles are in 3.01 x 1022 atoms of magnesium?
0.05 moles
1.81 x 1046 moles
5.00 x 1021 moles
5 moles
How many grams are in 1.2 x 1024 molecules of CO? (molar mass of CO = 28 g/mol)
28.2 g
55.8 g
6.02 g
1.2 g
How many atoms of carbon are in 6.00 g of carbon?
1.20x1024 atoms C
6.02x1023 atoms C
3.01x1023 atoms C
1.50x1023 atoms C
State of Matter?
Liquid
Gas
Solid
Plasma
If oxidation is occuring what happens to the metal
Resting
It's making a new substance
It's dissolving
Rusting
What is the State of Matter ?
Liquid
Solid
Gas
Solution
Which element in Period 2 has the greatest atomic radius?
Be
C
Na
Li
Of the halogens (group 7A), which has the smallest radius?
F
Br
He
At
How many atoms of sodium (Na) are in one molecule of baking soda?
1
2
3
4
proton
lives in the nucleus & positively charge
electron
lives in the cloud & negatively charge
neutron
lives in the nucleus & no charge
valence electron
lives in the last ring & negatively charge
nucleus
where protons & neutrons are found and largest mass
The negatively charged ions (anions) are attracted to the ________.
anode
cathode
In an electrolytic cell, the positive electrode is the
anode, where oxidation occurs
anode where reduction occurs
cathode where reduction occurs
During the electrolysis of molten sodium chloride what is produced at the cathode?
Na (s)
Cl (g)
Cl2 (g)
Na (l)
Which of these is a cation?
Cl-
Cl2
Na
Na+
Which of these is an anion?
Cl-
Cl2
Na
Na+
Choose the half-equation that shows the discharge of aluminium ion.
Al3+ - 3e- --> Al
Al2+ + 3e- --> Al
Al3+ + 3e- --> Al
Al3+ --> Al + 3e-
Which equation shows what happen to chloride ions at the anode.
Cl- --> Cl + e-
2Cl- --> Cl2 + 2e-
Cl2 - -> 2e- + 2Cl-
Cl2 + 2e- --> 2Cl-
A
B
C
D
How many atoms are there in one mole of a substance?
3.022 x 10^23
9.022 x 10^23
1.5 x 10^23
6.022 x 10^23
What is Avogadro's Number?
1.2 x 1024
6.02 x 1023
602
305
What is the volume of oxygen gas used if i had a mol of 1.57 mol at rtp.
89dm³
37.44dm³
37.44g
89mol/dm³
What is relative atomic mass ?
the weight in grams of the number of atoms of the element contained in 12.00 g of carbon-14
the weight in grams of the number of atoms of the element contained in 12.00 g of carbon-12
the ratio of the average mass per atom of the element to 1/12 of the mass of an atom of 12C.
