HW: Balancing Equations

​HW:
Balancing Chemical Equations

Pre-AP® Chemistry 25-26

BEFORE YOU BEGIN

Make sure that you are doing this homework either in your spiral, or on some sort of physical paper/notebook.

Balancing requires lots of work (sometimes) and it's impossible to ask for help when you can't show/reference your work -- be sure to have written out your equations and shown any work.

Your equations make/break this assignment, be sure to read carefully.

If the equation is already provided, just balance! Be sure to have some sort of record of your work.

Before starting this set of questions:

​On paper, write a BALANCED equation that accurately represents the following scenario.

Iron metal is exposed to chlorine gas and produces an iron (III) chloride deposit.

You will be using YOUR equation to answer the next few problems... be sure to take your time with this step!

Math Response

What is the coefficient that goes in front of iron metal?

Type answer here

Correct Answer: 2

Deg^°

Rad

Math Response

What is the coefficient that goes in front of chlorine gas?

Type answer here

Correct Answer: 3

Deg^°

Rad

Math Response

What is the coefficient that goes in front of iron (III) chloride?

Type answer here

Correct Answer: 2

Deg^°

Rad

Before starting this set of questions:

​On paper, write a BALANCED equation that accurately represents the following scenario.

Iron metal is exposed to oxygen in the atmosphere and eventually produces iron (III) oxide, AKA rust.

You will be using YOUR equation to answer the next few problems... be sure to take your time with this step!

Math Response

What is the coefficient that goes in front of iron metal?

Type answer here

Correct Answer: 4

Deg^°

Rad

Math Response

What is the coefficient that goes in front of oxygen?

Type answer here

Correct Answer: 3

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Rad

Math Response

What is the coefficient that goes in front of iron (III) oxide?

Type answer here

Correct Answer: 2

Deg^°

Rad

Before starting this set of questions:

​On paper, BALANCE the chemical equation below and answer the questions that follow.

___ C₄H₆O₃ + ___ H₂O → ___ C₂H₄O₂

You will be using THIS equation to answer the next few problems... be sure to take your time when balancing!

Math Response

What is the coefficient for C₄H₆O₃?

Type answer here

Correct Answer: 1

Deg^°

Rad

Math Response

What is the coefficient for C₂H₄O₂?

Type answer here

Correct Answer: 2

Deg^°

Rad

Math Response

What is the coefficient for H₂O?

Type answer here

Correct Answer: 1

Deg^°

Rad

Before starting this set of questions:

​On paper, BALANCE the chemical equation below and answer the questions that follow.

___ C₄H₁₀O + ___ O₂ → ___ CO₂ + ___ H₂O

You will be using THIS equation to answer the next few problems... be sure to take your time when balancing!

Math Response

What is the coefficient for C₄H₁₀O?

Type answer here

Correct Answer: 1

Deg^°

Rad

Math Response

What is the coefficient for H₂O?

Type answer here

Correct Answer: 5

Deg^°

Rad

Math Response

What is the coefficient for O₂?

Type answer here

Correct Answer: 6

Deg^°

Rad

Math Response

What is the coefficient for CO₂?

Type answer here

Correct Answer: 4

Deg^°

Rad

Before starting this set of questions:

​On paper, BALANCE the chemical equation below and answer the questions that follow.

___ C₇H₁₆ + ___ O₂ → ___ CO₂ + ___ H₂O

You will be using THIS equation to answer the next few problems... be sure to take your time when balancing!

Math Response

What is the coefficient for C₇H₁₆?

Type answer here

Correct Answer: 1

Deg^°

Rad

Math Response

What is the coefficient for H₂O?

Type answer here

Correct Answer: 8

Deg^°

Rad

Math Response

What is the coefficient for O₂?

Type answer here

Correct Answer: 11

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Rad

Math Response

What is the coefficient for CO₂?

Type answer here

Correct Answer: 7

Deg^°

Rad

Before starting this set of questions:

​On paper, BALANCE the chemical equation below and answer the questions that follow.

___ FeBr₃ + ___ H₂SO₄ → ___ Fe₂(SO₄)₃ + ___ HBr

You will be using THIS equation to answer the next few problems... be sure to take your time when balancing!

Math Response

What is the coefficient for FeBr₃?

Type answer here

Correct Answer: 2

Deg^°

Rad

Math Response

What is the coefficient for H₂SO₄?

Type answer here

Correct Answer: 3

Deg^°

Rad

Math Response

What is the coefficient for Fe₂(SO₄)₃?

Type answer here

Correct Answer: 1

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Rad

Math Response

What is the coefficient for HBr?

Type answer here

Correct Answer: 6

Deg^°

Rad

Before starting this set of questions:

​On paper, BALANCE the chemical equation below and answer the questions that follow.

___ H₂SiCl₂ + ___ H₂O → ___ H₈Si₄O₄ + ___ HCl

You will be using THIS equation to answer the next few problems... be sure to take your time when balancing!

Math Response

What is the coefficient for H₂SiCl₂?

Type answer here

Correct Answer: 4

Deg^°

Rad

Math Response

What is the coefficient for H₈Si₄O₄?

Type answer here

Correct Answer: 1

Deg^°

Rad

Math Response

What is the coefficient for H₂O?

Type answer here

Correct Answer: 4

Deg^°

Rad

Math Response

What is the coefficient for HCl?

Type answer here

Correct Answer: 8

Deg^°

Rad