126 Chemical Formulas-Notes and Models

Last updated over 3 years ago

17 questions

Note from the author:

Instructions

126 Chemical Formulas-Notes and Models

Last updated over 3 years ago

17 questions

Note from the author:

TEKS: I CAN recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing subscripts (8.5D)
Essential Question: How can we determine the number of atoms in chemical formulas containing subscripts, coefficients, and parentheses?  We will discuss chemical formulas, what they represent, and how to count the atoms represented by them. 
Pay attention to:
Important vocubulary
How atoms combine
Steps to count atoms

Instructions

TEKS: I CAN recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing subscripts (8.5D)

Set up journal page 35.

Essential Question: How can we determine the number of atoms in chemical formulas containing subscripts, coefficients, and parentheses?

We will discuss chemical formulas, what they represent, and how to count the atoms represented by them.
Pay attention to:
Important vocubulary
How atoms combine
Steps to count atoms
Be sure to write examples of how to count atoms in a chemical formula.

What is the difference between molecules and compounds?

AS YOU WATCH THE VIDEO, YOU MUST DO THE FOLLOWING:
TAKE NOTES throughout the video- WRITE them on journal page 35

Take additional notes on vocabulary:
subscript
coefficient
Follow all the steps to count atoms:
1. Identify the elements (capital letters)
2. Write the coefficient for ALL
3. Multiply by the subscript for each
4. Multiply by the parenthesis subscript (only elements within the parenthesis)

ESSENTIAL QUESTION: How can we determine the number of atoms of each element?
Add a text box and type your answer.
SENTENCE STEMS:
In order to find the number of atoms of each element……
First,.......then,,,,,

How many total atoms are in the chemical formula?
C₆H₁₂O₆

How many molecules are present?
3C₂H₄O₂

How many Sodium atoms are in the chemical formula?
Na(OH)₂

How many elements are in the chemical formula?
2Cu(NO₃)₂

Using your 6 colored pencils, draw each model on journal page 34.

Complete the following questions to check for understanding.

126 Chemical Formulas-Notes and Models

126 Chemical Formulas-Notes and Models

What is the difference between molecules and compounds?

Take additional notes on vocabulary:
subscript
coefficient
Follow all the steps to count atoms:
1. Identify the elements (capital letters)
2. Write the coefficient for ALL
3. Multiply by the subscript for each
4. Multiply by the parenthesis subscript (only elements within the parenthesis)

ESSENTIAL QUESTION: How can we determine the number of atoms of each element?
Add a text box and type your answer.
SENTENCE STEMS:
In order to find the number of atoms of each element……
First,.......then,,,,,

How many total atoms are in the chemical formula?
C₆H₁₂O₆

How many molecules are present?
3C₂H₄O₂

How many Sodium atoms are in the chemical formula?
Na(OH)₂

How many elements are in the chemical formula?
2Cu(NO₃)₂

Using your 6 colored pencils, draw each model on journal page 34.

Complete the following questions to check for understanding.

What are the basic units of all matter?

Choose 2 that are pure elements

Which 2 are compounds?

What is the difference between molecules and compounds?

ESSENTIAL QUESTIONS: What does a chemical formula represent?
Add a text box and type your answer.
SENTENCE STEMS:
A chemical formula contains……
The number of atoms….
A ratio….

Take additional notes on vocabulary:
subscript
coefficient
Follow all the steps to count atoms:
1. Identify the elements (capital letters)
2. Write the coefficient for ALL
3. Multiply by the subscript for each
4. Multiply by the parenthesis subscript (only elements within the parenthesis)

ESSENTIAL QUESTION: How can we determine the number of atoms of each element?
Add a text box and type your answer.
SENTENCE STEMS:
In order to find the number of atoms of each element……
First,.......then,,,,,

How many total atoms are in the chemical formula?
C₆H₁₂O₆

How many molecules are present?
3C₂H₄O₂

How many Sodium atoms are in the chemical formula?
Na(OH)₂

How many elements are in the chemical formula?
2Cu(NO₃)₂

Using your 6 colored pencils, draw each model on journal page 34.

Complete the following questions to check for understanding.

What is the basic unit of matter?

If an atom has 1 valence electron, what other atoms might it join with to form a chemical bond and form a new chemical compound?

How many different elements are in the formula?

How many total atoms are in the chemical formula?

The coefficient of a chemical formula tells you how many ____ are present.

What are the basic units of all matter?

Choose 2 that are pure elements

Which 2 are compounds?

What is the basic unit of matter?

If an atom has 1 valence electron, what other atoms might it join with to form a chemical bond and form a new chemical compound?

How many different elements are in the formula?

How many total atoms are in the chemical formula?

The coefficient of a chemical formula tells you how many ____ are present.

126 Chemical Formulas-Notes and Models

126 Chemical Formulas-Notes and Models

What is the difference between molecules and compounds?

Take additional notes on vocabulary: subscriptcoefficientFollow all the steps to count atoms:1. Identify the elements (capital letters)2. Write the coefficient for ALL 3. Multiply by the subscript for each4. Multiply by the parenthesis subscript (only elements within the parenthesis)

ESSENTIAL QUESTION: How can we determine the number of atoms of each element?Add a text box and type your answer.SENTENCE STEMS:In order to find the number of atoms of each element……First,.......then,,,,,

How many total atoms are in the chemical formula?C₆H₁₂O₆

How many molecules are present?3C₂H₄O₂

How many Sodium atoms are in the chemical formula?Na(OH)₂

How many elements are in the chemical formula?2Cu(NO₃)₂

Using your 6 colored pencils, draw each model on journal page 34.

Complete the following questions to check for understanding.

What are the basic units of all matter?

Choose 2 that are pure elements

Which 2 are compounds?

What is the difference between molecules and compounds?

ESSENTIAL QUESTIONS: What does a chemical formula represent?Add a text box and type your answer.SENTENCE STEMS:A chemical formula contains……The number of atoms….A ratio….

Take additional notes on vocabulary: subscriptcoefficientFollow all the steps to count atoms:1. Identify the elements (capital letters)2. Write the coefficient for ALL 3. Multiply by the subscript for each4. Multiply by the parenthesis subscript (only elements within the parenthesis)

ESSENTIAL QUESTION: How can we determine the number of atoms of each element?Add a text box and type your answer.SENTENCE STEMS:In order to find the number of atoms of each element……First,.......then,,,,,

How many total atoms are in the chemical formula?C₆H₁₂O₆

How many molecules are present?3C₂H₄O₂

How many Sodium atoms are in the chemical formula?Na(OH)₂

How many elements are in the chemical formula?2Cu(NO₃)₂

Using your 6 colored pencils, draw each model on journal page 34.

Complete the following questions to check for understanding.

What is the basic unit of matter?

If an atom has 1 valence electron, what other atoms might it join with to form a chemical bond and form a new chemical compound?

How many different elements are in the formula?

How many total atoms are in the chemical formula?

The coefficient of a chemical formula tells you how many ____ are present.

What are the basic units of all matter?

Choose 2 that are pure elements

Which 2 are compounds?

What is the basic unit of matter?

If an atom has 1 valence electron, what other atoms might it join with to form a chemical bond and form a new chemical compound?

How many different elements are in the formula?

How many total atoms are in the chemical formula?

The coefficient of a chemical formula tells you how many ____ are present.

Take additional notes on vocabulary:
subscript
coefficient
Follow all the steps to count atoms:
1. Identify the elements (capital letters)
2. Write the coefficient for ALL
3. Multiply by the subscript for each
4. Multiply by the parenthesis subscript (only elements within the parenthesis)

ESSENTIAL QUESTION: How can we determine the number of atoms of each element?
Add a text box and type your answer.
SENTENCE STEMS:
In order to find the number of atoms of each element……
First,.......then,,,,,

How many total atoms are in the chemical formula?
C₆H₁₂O₆

How many molecules are present?
3C₂H₄O₂

How many Sodium atoms are in the chemical formula?
Na(OH)₂

How many elements are in the chemical formula?
2Cu(NO₃)₂

ESSENTIAL QUESTIONS: What does a chemical formula represent?
Add a text box and type your answer.
SENTENCE STEMS:
A chemical formula contains……
The number of atoms….
A ratio….

Take additional notes on vocabulary:
subscript
coefficient
Follow all the steps to count atoms:
1. Identify the elements (capital letters)
2. Write the coefficient for ALL
3. Multiply by the subscript for each
4. Multiply by the parenthesis subscript (only elements within the parenthesis)

ESSENTIAL QUESTION: How can we determine the number of atoms of each element?
Add a text box and type your answer.
SENTENCE STEMS:
In order to find the number of atoms of each element……
First,.......then,,,,,

How many total atoms are in the chemical formula?
C₆H₁₂O₆

How many molecules are present?
3C₂H₄O₂

How many Sodium atoms are in the chemical formula?
Na(OH)₂

How many elements are in the chemical formula?
2Cu(NO₃)₂