Balancing Chemical Equations Concepts

Balancing Chemical Equations Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Ethan Morris

FREE Resource

The video tutorial demonstrates how to balance the chemical equation FeCl2 + NaOH. It begins by counting the atoms on each side of the equation, focusing on elements like iron, chlorine, sodium, oxygen, and hydrogen. The tutorial then explains how to balance the chlorine and sodium atoms by adjusting coefficients. Finally, it ensures that all elements are balanced, resulting in a balanced chemical equation. Dr. B concludes the tutorial by confirming the balanced equation.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial count of chlorine atoms on the reactant side of the equation FeCl2 + NaOH?

Four

One

Two

Three

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

On the product side, how many oxygen atoms are initially present?

Two

Four

One

Three

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is added in front of NaCl to balance the chlorine atoms?

4

3

2

1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After balancing chlorine, what is the next element to be balanced?

Hydrogen

Iron

Sodium

Oxygen

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final count of hydrogen atoms on the product side after balancing?

One

Two

Four

Three

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element is left to balance last according to the strategy discussed?

Iron

Chlorine

Oxygen

Sodium

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final balanced equation for FeCl2 + NaOH?

2FeCl2 + NaOH → Fe(OH)2 + 2NaCl

FeCl2 + NaOH → Fe(OH)2 + NaCl

FeCl2 + NaOH → Fe(OH)2 + NaCl2

FeCl2 + 2NaOH → Fe(OH)2 + 2NaCl