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Tootsie Pop Chemistry. Chemical Symbols, Formulas, and Equations. Supplies. Tootsie-Pop (different color for each person in the group) Colored pencils Colored squares of paper to represent additional pop wrappers Arrows and + signs Science notebooks. Purpose.

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tootsie pop chemistry

Tootsie Pop Chemistry

Chemical Symbols,

Formulas,

and Equations

supplies
Supplies
  • Tootsie-Pop (different color for each person in the group)
  • Colored pencils
  • Colored squares of paper to represent additional pop wrappers
  • Arrows and + signs
  • Science notebooks
purpose
Purpose

Use chemical symbols to represent chemical formulas and equations.

slide4

If the flavors of Tootsie-Roll Pops represent different atoms or elements, how many different combinations can your group create?

slide5
In your notebook, draw a picture of each combination.
  • Which group can find the most combinations within 3 minutes?
slide6
How many different kinds of atoms are represented by your Tootsie-Roll Pops?
  • How many different combinations did your group make?
  • Do you think any other group had the same combinations as your group did?
  • Were there other combinations your group didn’t think of?
slide8
Draw a picture description of this combination.
  • Now write a description of this combination in words.
can you think of a better way
Can you think of a better way?
  • Drawing pictures or writing out descriptions is quite tiresome and time-consuming.
  • Let’s give each color a symbol.
  • You can unwrap your lollipop now!!!
slide10
Grape – G
  • Cherry – Ch
  • Chocolate – Cc
  • Orange – Or
  • Green – Gn
  • Raspberry -R
slide11
Make three different combinations using the wrappers and describe them using the color symbols.
use symbols to describe the following combinations
Use symbols to describe the following combinations:
  • orange and chocolate
  • chocolate, grape, and cherry
  • grape, cherry, orange, and green
  • OrCc
  • CcGCh
  • GChOrGn
slide13
Sets of symbols like GCh and OrCcG are called formulas. Each symbol represents one kind of atom.
  • If you have more than one of the same kind of atom in a formula you place that number after and a little below the line to show the number of atoms.
  • This number is called a subscript.
  • Example – Or2Cc
slide14
Using the wrappers and colored paper squares, arrange the ‘atoms’ in the following combinations.
  • If there is more than one ‘atom’, place the same ‘atoms’ on top of each other, but make sure you can count how many there are.
slide15

3 cherries and 5 chocolates

Now write the formula -

Ch3Cc5

1 orange and 2 grapes
1 orange and 2 grapes

OrG2

4 chocolates, 2 greens, 3 cherries

Cc4Gn2Ch3

law of conservation of mass
Law of Conservation of Mass
  • Matter can neither be created nor destroyed during a chemical change.
  • The total mass of all substances must be equal to the total mass after a chemical change.
  • There can be no loss of mass nor gain of mass during a chemical change.
orch 2 ccg 2 orccg 4 ccch 2
OrCh2 + CcG2 OrCcG4 + CcCh2
  • Make the following combinations with your wrappers and papers.
  • Compare and record the number of ‘atoms’ on each side of the arrow.

_____ Or _____ Or

_____ Ch _____ Ch

_____ Cc _____ Cc

_____ G _____ G

ccg orgn 2 org 2 ccgn
CcG + OrGn2 OrG2 + CcGn

Or + Ch2 Ch2Or

G + R2Ch  RChG + R2

what needs to be done to have these combinations of atoms obey the law of conservation of mass
What needs to be done to have these combinations of atoms obey the Law of Conservation of Mass?
stay tuned
Stay tuned…….

Tomorrow we will use coefficients to balance these equations!!

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