Chemical Equations Oct. 12 P6

Presentation

•

Science

•

8th Grade

•

Medium

•

NGSS

MS-PS1-1, MS-PS1-5, MS-ESS1-1

Standards-aligned

Ashlee B Pigg

Used 2+ times

FREE Resource

6 Slides • 14 Questions

Open Ended

BELL RINGER:

If you burn a piece of paper, is there more or less mass then when you started? Why?

(Hint: The Law!)

Type response here

Law of Conservation of Mass

Definition: Matter(atoms) canneitherbecreatednor
destroyed.

Atoms can only be rearranged.

How does this law relate to the glowsticks?

Multiple Choice

What is the Law of Conservation of Mass?

It states that matter cannot be created or destroyed.

It states that energy cannot be created or destroyed.

It states that matter can be created or destroyed.

It states that sound can be created or destroyed.

Chemical Equation

●Broken into 3 main

parts

●Reactants

●Arrow = Chemical

Reaction

●Products

Balancing Chemical Equations

Reactants

Product

Arrow

2H2+ O2→ 2 H2O

Multiple Choice

What is the right part of a chemical equation called...
2H_{2 +}O₂ --> 2H₂O

Reactants

Products

Yields

Chemical Equation

Multiple Choice

What is the part of the chemical equation in green called?
Fe + S --> FeS

products

reactants

yield

chemical formula

Balancing Chemical Equations

H2O

2
Review:

●Subscripts describe the # of

atoms in a molecule

●H2O Model

●The Coeﬃcient represents the

number of molecules

●2 Molecules of H2O

Multiple Choice

Element or compound?
H₂O

element

compound

Multiple Choice

How many Hydrogen (H) atoms are in NH₃O5

Multiple Choice

How many molecules of Carbon are in the following formula? 3C₂H₆

Multiple Choice

How many elements are in C₆H₁₂O₆?

Multiple Choice

How many Nitrogen (N) atoms are in 4NH₃?

Multiple Choice

How many Hydrogen (H) atoms are in 4NH₃?

Balanced Chemical Equation

A chemical equation is balanced (equal) if the number of atoms is equal on both sides of the equation.

Multiple Choice

Is this equation balanced?

Yes

Multiple Choice

Is this equation balanced?

Yes

Multiple Choice

Is this equation balanced?

Yes

Complete the Balanced Practice (Paper)

Poll

Turn Your Paper in to Mrs. Switalski.

How do you feel about your understanding of chemical equations so far?

😁

Great! I could teach someone else

🙂

Good, I know enough for myself

😕

Ok, I might need help still

😵‍💫

Bad, I don't understand at all!

You Are Finished!

Tower Defense 🎈
Cafe ☕️

Review on Blooket

Finish Missing Work

BELL RINGER:

If you burn a piece of paper, is there more or less mass then when you started? Why?

(Hint: The Law!)

Type response here

Show answer

Auto Play

Slide 1 / 20

OPEN ENDED

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