
Relative atomic and molecular mass. Balan

Assessment
•
PONNAMBALAN Moe
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Chemistry
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3rd - 4th Grade
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2 plays
•
Medium
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11 questions
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1.
MULTIPLE CHOICE
30 sec • 1 pt
Q1. The relative atomic mass is the average mass of an atom compared to
2.
MULTIPLE CHOICE
30 sec • 1 pt
Carbon atom is chosen as element for the relative atomic mass because it
3.
MULTIPLE CHOICE
30 sec • 1 pt
3. Relative atomic mass of an atom is the
4.
MULTIPLE CHOICE
30 sec • 1 pt
How many nitrogen atoms makes up the same relative atomic mass as 1 iron atom? (R.a.m ; N=14, Fe=56)
5.
MULTIPLE CHOICE
30 sec • 1 pt
Relative atomic mass of Bromine is equal to...
(R.am.; O=16, N=14, Mg=24, Fe=56, Br=80)
6.
MULTIPLE CHOICE
30 sec • 1 pt
What is the relative formula mass of Pb(NO3)2.
(R.am.; O=16, N=14, Pb=207)
7.
FILL IN THE BLANK
1 min • 1 pt
Calculate the relative molecular mass of P2O5.
(R.am.; O=16, P=31)
8.
FILL IN THE BLANK
1 min • 1 pt
Calculate the relative molecular mass of CCl4.
(R.am.; C=12, Cl=35.5)
9.
FILL IN THE BLANK
1 min • 1 pt
Calculate the relative formula mass of K3Fe(CN)6.
(R.am.; C=12, N=14, K=39, Fe=56)
10.
FILL IN THE BLANK
1 min • 1 pt
Calculate the relative formula mass of K3Fe(CN)6.
(R.am.; C=12, N=14, K=39, Fe=56)
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