Q1. The relative atomic mass is the average mass of an atom compared to

Relative atomic and molecular mass. Balan

Quiz
•
Chemistry
•
3rd - 4th Grade
•
Medium
PONNAMBALAN Moe
Used 2+ times
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11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1/12 the mass of a carbon atom.
1/12 the mass of a carbon-12 atom
12 times the mass of a carbon -12 atom
12 times the mass of a carbon atom
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Carbon atom is chosen as element for the relative atomic mass because it
exist in large quantity in earth crust
reacts easily with all metals only
can be handled easily
has high melting and boiling point
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Relative atomic mass of an atom is the
nucleon number of the atom
proton number of the atom
number of neutron of the atom
number of electron of the atom.
4.
MULTIPLE CHOICE QUESTION
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)
1/4
4
42
70
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Relative atomic mass of Bromine is equal to...
(R.am.; O=16, N=14, Mg=24, Fe=56, Br=80)
5 nitrogen atoms
6 oxygen atoms
the sum of 1 magnesium and 1 iron atoms
the sum of 2 oxygen and 3 nitrogen atoms
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relative formula mass of Pb(NO3)2.
(R.am.; O=16, N=14, Pb=207)
269
317
331
538
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Calculate the relative molecular mass of P2O5.
(R.am.; O=16, P=31)
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