Relative atomic and molecular mass. Balan

Relative atomic and molecular mass. Balan

Assessment

Assessment

Created by

PONNAMBALAN Moe

Chemistry

3rd - 4th Grade

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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.

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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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