Balancing Chemical Equations

Balancing Chemical Equations

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Emma Peterson

FREE Resource

The video tutorial explains how to balance the chemical equation CaC2 + H2O. It begins by counting the atoms on both the reactant and product sides of the equation. The tutorial identifies that the equation is not balanced due to the number of hydrogen and oxygen atoms. To balance the equation, the tutorial demonstrates adjusting the coefficients, specifically doubling the hydrogen and oxygen atoms, resulting in a balanced equation. The video concludes with a summary of the balanced equation and final remarks.

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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial number of hydrogen atoms on the reactant side of the equation CaC2 + H2O?

4

3

2

1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many oxygen atoms are present on the product side before balancing?

2

1

4

3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What adjustment is needed to balance the hydrogen atoms in the equation?

Double the hydrogen atoms

Add more calcium

Triple the carbon atoms

Remove one oxygen atom

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is placed in front of H2O to balance the equation?

2

1

3

4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After balancing, how many hydrogen atoms are on each side of the equation?

5

3

2

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final balanced equation for CaC2 + H2O?

CaC2 + 2H2O → Ca(OH)2 + C2H2

CaC2 + H2O → Ca(OH)2 + 2C2H2

CaC2 + H2O → Ca(OH)2 + C2H2

CaC2 + 2H2O → Ca(OH)2 + 2C2H2