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Analyzing Chemical Formulas

Analyzing Chemical Formulas

Assessment

Presentation

•

Science

•

8th Grade

•

Medium

•
NGSS
MS-PS1-5, MS-ESS1-2, MS-PS1-2

+12

Standards-aligned

Created by

Alex Davila

Used 5+ times

FREE Resource

7 Slides • 9 Questions

1

Match

DO NOW: Match the following

C-1

O-2

C-6

H-12

O-6

H-2

O-1

Na-1

H-1

C-1

O-3

Ba-3

P-2

O-8

2

Multiple Choice

Question image

What are the elements and Atoms per Element?

1

Na-1

H-1

C-1

O-3

2

Na-1

H-1

CO-3

3

Na-1

HCO-3

4

N-1

A-1

H-1

C-1

O-3

3

Analyzing Chemical Formulas
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SWBAT: identify the name and number of the different

atoms in a chemical equation by analyzing the symbols,

coefficients, and subscripts in the equation.

4

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​​Log into Clever

Look for Explore Learning-Rostering

Click on Gizmos

Search "chemical changes"
Click on first option

​GIZMOS
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5

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​Is this a Chemical or Physical Change?

What does the Equation look like?

Sodium + Water

​​Sodium +Kerosene

​​Mix your own

Mix Your own

​Is this a Chemical or Physical Change?

What does the Equation look like?

​Is this a Chemical or Physical Change?

What does the Equation look like?

​Is this a Chemical or Physical Change?

What does the Equation look like?

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6

Chemical reaction: a process in which, the reactants, are converted to one or more different substances.
Products: are substances that are produced in the reaction.
Reactants: are substances that start a chemical reaction

​

NOTES: TITLE- Analyzing Chemical Formulas

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  • Draw the image

7

Law Of Conservation Of Mass-Mass is not created nor destroyed, it must start and end with the same amount.


PRODUCTS MUST BE THE SAME AS THE REACTANTS

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​Draw the Image in notes

8

Hotspot

What is the Product?

9

Multiple Choice

Which of these represents the law of conservation of mass?

1
2
3
4

10

​Using the Paper Clips- model the reactants of Photosynthesis. You can move on to Products when Teacher has checked yours.

​​1. Reactants

​Unhook the Paper Clips used for the reactants, and now make the products.

  1. Products

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​Using Paper Clips
You will model Photosynthesis. (10min)
  • 18 paper clips (Orange)

  • 6 Paper Clips (different color)

  • 12 Paper Clips (different color)

11

Multiple Choice

What is the left part of a chemical equation called?

2H2 + O2 ---> 2H2O

1

Reactants

2

Yields

3

Products

4

Chemical equation

12

Multiple Choice

Is the following equation balanced?

Al + O2 ---> 2Al2O3

1

YES

2

NO

13

Multiple Choice

What is the Law of Conservation of Mass?

1

It states that matter cannot be created or destroyed.

2

It states that energy cannot be created or destroyed.

3

It states that matter can be created or destroyed.

4

It states that sound can be created or destroyed.

14

Multiple Choice

If a reaction starts with a total 75g of reactants it should produce 
1
a total of 40g of products
2
a total of 75g of products
3
a total of 180 g of products
4
None of the above

15

Multiple Choice

In a reaction A + B ----> C,  reactant A has 5g and product  C has 9g. How many grams does reactant B should have? 
1
4g
2
5g
3
9g
4
14g

16

The printer is not working.
fill this table in your white paper.

​

​Exit ticket

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​1.
​2.
pattern-tertiary

DO NOW: Match the following

C-1

O-2

C-6

H-12

O-6

H-2

O-1

Na-1

H-1

C-1

O-3

Ba-3

P-2

O-8

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MATCH