Formal Charges and Valence Electrons

Formal Charges and Valence Electrons

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Amelia Wright

FREE Resource

The video tutorial explains how to calculate formal charges for each element in sulfuric acid (H2SO4) using Lewis structures. It covers the calculation of formal charges for oxygen, sulfur, and hydrogen atoms, demonstrating that all elements have a formal charge of zero. This supports the idea that the presented Lewis structure is the most accurate representation of H2SO4.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of using a Lewis structure in calculating formal charges?

To predict the color of the compound

To calculate the boiling point

To determine the molecular weight

To visualize valence electrons and bonds

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many valence electrons does oxygen have in its double-bonded state?

Two

Eight

Six

Four

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formal charge on a double-bonded oxygen atom in H2SO4?

0

+2

+1

-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which group does sulfur belong to on the periodic table?

Group 12

Group 18

Group 16

Group 14

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formal charge on the sulfur atom in H2SO4?

-2

+1

+2

0

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many unbonded valence electrons does the oxygen attached to hydrogen have?

None

Six

Four

Two

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formal charge on the oxygen atom bonded to hydrogen in H2SO4?

+1

-1

0

+2

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