Conservation of mass pt 2

Match

4CF₂Cl₃

• carbon

• fluorine

• chlorine

4

8

12

• 4

• 8

• 12

Conservation of Mass pt2

SWBAT: describe how the total number of atoms does not

change in a chemical reaction and thus mass is conserved by

developing and using models.

- I will be able to discuss with my partner why the formulas follow the conservation of mass, and calculate the atoms per element to figure out whether they follow the law of conservation of mass.

Open Ended

Does this chemical equation follow the law of conservation of mass?

Look first 1min

Discuss with your partners for 1 minute each.

Write 2 min

Use words: Reactants, products, balanced, mass.

Categorize

Options (4)

Yesterday we learned that if a chemical formula follows the law of conservation of mass, it must have the same atoms and elements on both sides (reactants and products). Separate these chemical equations into the ones that follow the law or not.

Follows the Law of conservation of mass

Does not Follow the Law

​​Log into Clever

Look for Explore Learning-Rostering

Click on Gizmos

Search "chemical changes"
Click on first option

​GIZMOS

• I will give you a paper

• Write down the numbers.

• Initial mass and Final mass

• after each reaction.

• Make sure you select closed system or collect gas.

Teacher not: show in the camera.

Open Ended

What did you notice about the initial mass and the final mass for each?

Open Ended

What would happen if you did not select closed system or collect gas? Would they have the same mass, why do you think that is?

Voice Level 0
Work Independently
Read first then answer Questions
10 min
Click on the link:
https://quizizz.com/join?gc=97509941

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