Balancing Chemical Equations

Presentation

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Science

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10th Grade

•

Practice Problem

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Medium

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112.43.c.9.A

Standards-aligned

Anas Alassad

Used 1+ times

FREE Resource

21 Slides • 12 Questions

Fill in the Blanks

Remember that the amount of matter on the LEFT of an equation must equal the amount of matter on the RIGHT of an equation. How much of iron sulfide is produced when 56g of iron is combined with 32g of sulfur?

* Type the number only.

Type answer...

Multiple Choice

The blue numbers in the image below represent ________

I don't know, and don't want to try

coefficients

subscripts

none of the answers are correct

Fill in the Blanks

Strontium phosphate, Sr₃(PO₄)₂, is a crystalline substance used in medicine and industry. How many phosphorus atoms are represented in the formula Sr₃(PO₄)₂?

Multiple Choice

How many atoms of Sulfur are in Al2S3?

Multiple Choice

How many atoms of Calcium, Phosphorus, and Oxygen are present in the compound Ca3(PO4)2?

3 Calcium, 2 Phosphorus, 8 Oxygen

3 Calcium, 1 Phosphorus, 4 Oxygen

3 Calcium, 2 Phosphorus, 6 Oxygen

3 Calcium, 2 Phosphorus, 4 Oxygen

Multiple Choice

In a RAP table, what information do we need to include about the atoms present in a reaction?

The type of atoms

The number of atoms

Whether they are reactants or products

All of the above

4Fe + 3O₂ --> 2Fe₂O₃

Multiple Choice

What are the coefficients when the equation is balanced?

2 + 3 --> 2 + 3 + 4

1 + 3 --> 1 + 3 + 2

2 + 4 --> 2 + 3 + 2

1 + 1 --> 1 + 1 + 1

2Na + Cl₂ --> 2NaCl

Open Ended

How does the process of balancing equations illustrate the Law of Conservation of Mass?

Type response here

2Li + 2HNO₃ --> 2LiNO₃ + H₂

Multiple Choice

Balance the equation with polyatomic ions: $\text{BaCl}_2 + \text{Na}_2\text{SO}_4 \rightarrow \text{BaSO}_4 + \text{NaCl}$

$\text{BaCl}_2 + \text{Na}_2\text{SO}_4 \rightarrow \text{BaSO}_4 + 2\text{NaCl}$

$2\text{BaCl}_2 + \text{Na}_2\text{SO}_4 \rightarrow 2\text{BaSO}_4 + 2\text{NaCl}$

$\text{BaCl}_2 + 2\text{Na}_2\text{SO}_4 \rightarrow \text{BaSO}_4 + 4\text{NaCl}$

$\text{BaCl}_2 + \text{Na}_2\text{SO}_4 \rightarrow 2\text{BaSO}_4 + \text{NaCl}$

CH₄ + 2O₂ --> CO₂ + 2 H₂O

2 Na + I₂--> 2NaI

2KClO₃ --> 2KCl + 3O₂

Reorder

Balance the following equation:

_C₅H₁₂ + _O₂ → _CO₂ + _H₂O

Draw

Balance the following chemical equations. Be sure to show your work.

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