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Flashcards due 3/20
Mallory Brownell
Created on March 11, 2024
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Quarter 3 flashcards
These flashcards will help you review the material from quarter 3!
SET #5 DUE: WEDNESDAY, March 20th
Chemical Changes
DIFFERENT
Changes that result in a __________ type of matter.
REORGANIZE
Atoms _________ to make something NEW
Click on the picture that shows a CHEMICAL change:
Fruit rotting
Water boiling
Breaking Glass
Fireworks
Cutting Hair
Ok - let me try again
Nice weather is here and you decide to have a campfire outside! Would wood burning be an example of a physical or chemical change?
Chemical
Physical
Chemical Changes
Broken
1. Reactant bond are __________ 2. Atoms ___________ 3. _________ bonds are formed
ReArrange
New
Chemical Equation of burning candle
NOTICE:
Reactants are what you ________with
Products are produced (__________)
start
end with
CHECK
REACTANTS
Click and drag the labels to the correct side of the chemical equation.
MOVE ON
PRODUCTS
PRODUCTS
REACTANTS
HELP
CHECK
SORT THE REACTANTS AND PRODUCTS FROM THE CANDLE CHEMICAL EQUATION
Carbon Dioxide
Oxygen
MOVE ON
Methane (wax)
Water
Conservation of Mass
The total number of atoms (total mass) on the reactants side must ______ the number of atoms on the product side
EQUAL
ATOMS REARRANGE
No atoms are lost just ___________!
There is one "A" atom on the reactant side and one "A" atom on the product side
There is one "B" atom on the reactant side and one "B" atom on the product side
Rearranged
There is one "C" atom on the reactant side and one "C" atom on the product side
There is one "D" atom on the reactant side and one "D" atom on the product side
YOU TRY! Which of the choices below correctly shows conservation of mass?
1.
ATOMS REARRANGE
2.
ATOMS REARRANGE
3.
ATOMS REARRANGE
Is this equation balanced? Do the atoms on the reactant side equal the atoms on the product side?
CHECK
Click and drag: You won't use all the numbers
MOVE ON
Photosynthesis- Process where _______ make their own __________.
PLANTS
FOOD
Synthesis
Photo
LIGHT
PUTTING TOGETHER
_____________
_____________
LIGHT
Plants convert ________ energy into _______ energy (food!)
Chemical
Photosynthesis takes place in the _____________ of plant cells!
CHLOROPLAST
Chemical
Photosynthesis is a _____________ reaction, this means the atoms REARRANGE to make something new.
PRODUCTS
REACTANTS
Plants take in...
Plants give off/make...
CHECK
MOVE ON
Water
Glucose (food)
Carbon Dioxide
Give it a try! Sort the words
Oxygen
CHECK
PRODUCTS
Click and drag the labels to the correct side of the chemical equation.
MOVE ON
REACTANTS
In class, we will model what each molecule looks like and how the ATOMS 1. break apart 2. REARRANGE to make something new
= oxygen
= hydrogen
= carbon
How many of that molecule
I modeled 6CO2 By showing 6 carbon dioxide (CO2) molecules. Each molecule has 1 carbon atom and 2 oxygen atoms.
HELP
CHECK
MOVE ON
Try to build the WATER molecules using the atoms. I modeled the carbon dioxide for you.
= oxygen
= hydrogen
= carbon
Did I do it right? Are there 6 carbon atoms, 12 hydrogen atoms, 6 oxygen atoms?
Glucose is built like a chain - check this out!
= oxygen
= hydrogen
= carbon
CHECK
Try to build the OXYGEN molecules using the atoms:
MOVE ON
= oxygen
= hydrogen
= carbon
COUNT! Is this equation balanced? Do the hydrogen atoms on one side of the arrow match the hydrogen atoms on the other side? Carbon atoms? Oxygen atoms?
NO
YES
Energy in a Chemical Reaction
energy
It takes ___________ to break bonds Energy is released when bonds are __________
formed
Exothermic Reaction
increases
- Temperature ____________
- Energy ___________
EXITS
Products
Reactants
Energy enters
A LOT of energy exits (temps increase)
ENDOthermic Reaction
decreases
- Temperature ____________
- Energy ___________