Vocabulary
Westfield Q's
Chemical Reactions
Atoms
100
These are tiny pieces that all matter is made of
What are Atoms?
100
What was the reddish-brownish substance in the water in Westfield?
Rust
100
Do the repeating groups of atoms in Samples 1 and 2 have the same properties? Explain!
No, they have different properties because they have a different combination of atoms.
100
The temperature at which a substance changes from the solid phase to the liquid phase is this property.
What is Melting point?
200
An object, diagram, or computer program that helps us understand something by making it simpler or easier to see.
What is a Model?
200
Which Claim is correct?
Claim 1: The iron pipes changed into rust.
Claim 2: The fertilizer changed into rust.
Claim 3: The iron pipes and the fertilizer changed into rust.
What is Claim 3?
200
What is some evidence that a chemical reaction occurred?
Hint: What are the different properties a substance can have?
Color, Smell, Boiling or Melting Point
200
What is a possible product these reactants can form?
red/orange + blue/black
or
red/black + blue/orange
300
This is the process in which atoms rearrange to form new substances
What is a Chemical Reaction?
300
What two substances created rust?
Fertilizer and Iron
300
What is an example of a Lab Condition that molecules must have to have a chemical reaction?
In water, room temperature, electricity
300
During a chemical reaction, ______ of the atoms that make up the reactants rearrange to form the products.
a. Some
b. All
C. None
All
400
the beginning and ending substances that are made during a chemical reaction.
Reactants and Products
400
How did the tokens represent a chemical reaction?
By organizing them by color for each type of atom and showing how they rearranged during the chemical reaction
400
What can cause an chemical reaction?
Add liquid, heat, cold, or a combination
400
Can substances change into new, different substances? Explain!
Yes, because atoms can be rearranged to form different substances.
500
Something that can be observed about a substance, such as color, smell or boiling point.
What is a Property?
500
How was rust created? Which atoms were involved?
Hint: Think of the tokens
A chemical reaction caused iron and oxygen to combine from the fertilizer running through the pipes
500
Explain what occurred in this chemical reaction 
The atoms in the methane (1 carbon, 4 hydrogen) reacted to the atoms in oxygen (2 atomic pairs of 2 oxygen). After the chemical reaction, the carbon atoms combined with one of the oxygen molecules to create carbon dioxide (CO2), while the hydrogen atoms combined with the other oxygen molecule to create 2 water molecules (H2O)
500
In the reaction shown, hydrogen and oxygen are the _______, while the two H2O are the ____________.
Reactants, Products