Chemical Building Blocks

Chemical Building Blocks

12th Grade

10 Qs

quiz-placeholder

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Chemical Building Blocks

Chemical Building Blocks

Assessment

Quiz

Chemistry

12th Grade

Hard

NGSS
HS-PS1-7

Standards-aligned

Created by

Charles Martinez

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A balloon contains 6.02 x 1023 of gas particles. What is the number of moles of the gas in the ballon?

0.5 mol

1.0 mol

3.0 mol

6.0 mol

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The mass of eight atoms of element X is equal to the mass of two silicon atoms. X is not the actual symbol of the element. What is the relative atomic mass of element X ?

[Relative atomic mass: Si= 28]

3.5

7.0

14.0

28.0

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The relative molecular mass of K3M(CN)6 is 329. What is the relative atomic mass of element M?

[Relative atomic mass: K= 39, C=12, N=14]

56

134

186

264

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the number of atoms in 1.5 moles of sulphur dioxide, SO2 ? [ Avogadro constant= 6.02x 1023 mol-1]

6.02x1023

1.5x 6.02x 1023

1.5 x 2 x 6.02x 1023

1.5 x 3 x 6.02 x 1023

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement explains that carbon-12 was chosen as a standard reference for relative atomic mass?

Carbon forms covalent bonds with other elements

Carbon atoms has four valence electrons

Carbon is a solid which is easier to handle

Among the three isotopes carbon-12, carbon-13 and carbon-14, carbon-12 is the lightest.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following gases contains 0.6 mole of atoms at room temperature and pressure?

[ Molar volume of gas= 24 dm3mol-1 at room condition]

4.8 dm3 of neon

4.8 dm3 of nitrogen

4.8 dm3 of sulphur trioxide

4.8 dm3 of carbon dioxide

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much is the mass of nitrogen that is contained in 3.01 x 1023 molecules of nitrogen ?

[ Relative atomic mass: N=14, NA=6.02x 1023 mol -1]

4 g

8 g

14 g

28 g

Tags

NGSS.HS-PS1-7

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