3.3 Balancing Chemical Equations Phet Simulation

Last updated almost 4 years ago

12 questions

1

Open the balancing phet simulation to complete this activity.  CLICK ON INTRODUCTION

1

Draw the particle view of the balanced equation as shown in the simulation.

1

Describe the purpose of the balance scales and bar charts in the simulation.

1

Explain in your own words how you got the coefficients for question 5.

1

Explain in your own words how you got the coefficients for question 7.

1

Now click on "Game" at the very bottom of the screen. Choose at least 1 level of the game. (fyi: level 1 is kinda hard)

Click on Show your Work and record at least 3 balanced chemical equations with coefficients.

(Note: You will want to try these on paper too if it helps you balance. You'll need to know how to get the coefficients for your quiz.)

1

Record the game level and score you received for each level you played

DON'T FORGET TO PRESS SUBMIT TO CHECK YOUR ANSWERS WHEN FINISHED!

1

Rate your mastery level at this point based on your understanding of how to balance chemical equations. Include your reasoning.

Open the balancing phet simulation to complete this activity.  CLICK ON INTRODUCTION

Use the simulation to adjust the coefficients and balance the following equation. Select the balance scales and bar charts to help under Tools to help.

Fill in the proper coefficients when you are successful (yellow smiley face).
N2 + H2 → NH3

1, 2, 1

1, 3, 1

1, 3, 1

1, 3, 2

Draw the particle view of the balanced equation as shown in the simulation.

Describe the purpose of the balance scales and bar charts in the simulation.

In order for a chemical equation to be properly balanced, what must be true?

Select All that are true

The total mass of the reactants is the same as the total mass of the products 

The reactants have less mass than products

The reactants have more mass than products

The number of each element in the reactants is equal to the number of each element in the products

Click on "Separate Water" ato the bottom. Balance the reaction. What are the correct coefficients?

1, 2, 1

2, 1, 1

1,1,2

2,2,1

Explain in your own words how you got the coefficients for question 5.

Click on "Combust Methane" at the bottom. Balance the reaction. What are the correct coefficients?

1, 2, 1, 2

2, 1, 1, 2

1, 3, 1, 2

2, 2, 1, 1

Explain in your own words how you got the coefficients for question 7.

The number placed in front of a formula is called a coefficient. The small number within a chemical formula is called a subscript. Why do we adjust coefficients when balancing chemical equations and not subscripts?

We can change how many we have of each molecule since there is always more than 1 of the same molecule in nature.  We can't change how the atoms combine to form a stable compound with 8 valence electrons in nature. 

We can't change how many we have of each molecule since there is only 1 molecule of any substance in nature. We can change how the atoms combine to form a stable compound with 8 valence electrons in nature.

Now click on "Game" at the very bottom of the screen. Choose at least 1 level of the game. (fyi: level 1 is kinda hard)

Click on Show your Work and record at least 3 balanced chemical equations with coefficients.

(Note: You will want to try these on paper too if it helps you balance. You'll need to know how to get the coefficients for your quiz.)

Record the game level and score you received for each level you played

DON'T FORGET TO PRESS SUBMIT TO CHECK YOUR ANSWERS WHEN FINISHED!

Rate your mastery level at this point based on your understanding of how to balance chemical equations. Include your reasoning.

 Use the simulation to adjust the coefficients and balance the following equation. Select the balance scales and bar charts to help under Tools to help. 

Fill in the proper coefficients when you are successful (yellow smiley face).
____ N2 + ____ H2 →____ NH3

1, 2, 1

1, 3, 1

1, 3, 1

1, 3, 2

In order for a chemical equation to be properly balanced, what must be true?

Select All that are true

The total mass of the reactants is the same as the total mass of the products 

The reactants have less mass than products

The reactants have more mass than products

The number of each element in the reactants is equal to the number of each element in the products

Click on "Separate Water"  ato the bottom. Balance the reaction. What are the correct coefficients? 

1, 2, 1

2, 1, 1

1,1,2

2,2,1

Click on "Combust Methane"  at the bottom. Balance the reaction. What are the correct coefficients? 

1, 2, 1, 2

2, 1, 1, 2

1, 3, 1, 2

2, 2, 1, 1

The number placed in front of a formula is called a coefficient.  The small number within a chemical formula is called a subscript.  Why do we adjust coefficients when balancing chemical equations and not subscripts? 

We can change how many we have of each molecule since there is always more than 1 of the same molecule in nature.  We can't change how the atoms combine to form a stable compound with 8 valence electrons in nature. 

We can't change how many we have of each molecule since there is only 1 molecule of any substance in nature. We can change how the atoms combine to form a stable compound with 8 valence electrons in nature.

3.3 Balancing Chemical Equations Phet Simulation

Draw the particle view of the balanced equation as shown in the simulation.

Describe the purpose of the balance scales and bar charts in the simulation.

Explain in your own words how you got the coefficients for question 5.

Explain in your own words how you got the coefficients for question 7.

Record the game level and score you received for each level you played

Rate your mastery level at this point based on your understanding of how to balance chemical equations. Include your reasoning.

Use the simulation to adjust the coefficients and balance the following equation. Select the balance scales and bar charts to help under Tools to help. Fill in the proper coefficients when you are successful (yellow smiley face).____ N2 + ____ H2 →____ NH3

Draw the particle view of the balanced equation as shown in the simulation.

Describe the purpose of the balance scales and bar charts in the simulation.

In order for a chemical equation to be properly balanced, what must be true?Select All that are true

Click on "Separate Water" ato the bottom. Balance the reaction. What are the correct coefficients?

Explain in your own words how you got the coefficients for question 5.

Click on "Combust Methane" at the bottom. Balance the reaction. What are the correct coefficients?

Explain in your own words how you got the coefficients for question 7.

The number placed in front of a formula is called a coefficient. The small number within a chemical formula is called a subscript. Why do we adjust coefficients when balancing chemical equations and not subscripts?

Record the game level and score you received for each level you played

Rate your mastery level at this point based on your understanding of how to balance chemical equations. Include your reasoning.

Use the simulation to adjust the coefficients and balance the following equation. Select the balance scales and bar charts to help under Tools to help.

Fill in the proper coefficients when you are successful (yellow smiley face).
N2 + H2 → NH3

In order for a chemical equation to be properly balanced, what must be true?

Select All that are true