The tiny pieces that all matter is made of.
Atoms
What was the brown substance in the water in Westfield?
Rust
These substances will have __________ properties.
different
What number is the coefficient and which number is the subscript?
Coefficient:
Subscript
The diagram shows the repeating groups of atoms that make up two samples. The properties will be ________ because ________.
different; the molecules are made of different types of atoms
a group of atoms bonded together
(aka a repeating atom group)
Molecule
Can rust be created without fertilizer?
No
These substances have the exact same properties. True or False?
False
What is a possible product these reactants can form?
red, orange
blue, black
red, black
blue, orange
During a chemical reaction, atoms cannot be ______ or ______.
Created or destroyed
A process in which atoms rearrange to form new substances
Chemical Reaction
What two substances created rust?
Fertilizer and Pipe Substance
In this reaction, how many hydrogen and oxygen are in the reactants?
4 Hydrogen and 2 Oxygen
During a chemical reaction, ______ of the atoms that make up the reactants rearrange to form the products.
All
devorah is a food chemist, and she is developing a chemical to help foods stay fresh longer. She mixed a red liquid substance and a colorless solid substance together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.
After mixing, Devorah found two white substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?
C
An ending substance that is made during a chemical reaction.
Product
How did the tokens represent a chemical reaction?
Hint: Notebook page 85
By organizing them by color for each type of atom and showing how they rearranged during the chemical reaction
Is this equation balanced or unbalanced?
Balanced
Can substances change into different substances?
yes, because atoms can be rearranged to form different substances
Mr. Cosgrove mixed two samples together: a gray solid that smells like flowers and a gray solid that smells like bleach. He analyzed the results and found two ending substances. One of the ending substances (shown in diagram) was a white solid, made up of the repeating group of atoms shown above. Which of the diagrams shows the repeating groups of atoms that make up the reactants?
D
Something that can be observed about a substance, such as color, smell or boiling point.
Property
What were the two pieces of evidence to support your claim about the reddish-brown stuff in the Westfield water?
Observations: The reddish-brown substance didn't look like either the pipe substance or fertilizer
Elements: All three substances were made of different repeating atom groups
In this chemical equation, which is one of the products?
Water
Carbon Dioxide
In the reaction shown, hydrogen and oxygen are the _______.
Reactants
Ms. Schoolcraft is a chemist who is making a chemical to add to swimming pools in order to make the water safer. She mixed two solid substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances. After mixing, Ms. Schoolcraft found two liquid substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the right shows the repeating groups of atoms that make up the products?
c