Vocabulary
Clues to a Chemical Change
Physical vs. Chemical Change
Physical Change vs. Chemical Change Part 2
Elements vs Compounds
100
A change in which a substance becomes a new substance is called....
a chemical change?
100
Name the 5 evidences to a chemical change.
(CGLTP) temperature change, color change, production of a precipitate, production of a gas, production of heat and light?
100
Rotting eggs are an example of a _____ change.
Bonus: (100 pts) Evidence
chemical change
Evidence- color change and gas produced
100
The melting of butter is an example of a _____ change.
physical change
100
Is table salt an element or compound?
Bonus: (100 pts) Why?
Bonus: (50 pts for each) What are the names of the elements in this compound?
Compound, it has two elements Na- Sodium, Cl- Chlorine
200
A substance made up of two or more elements is called.....
Compound
200
Explain all the clues that burning paper is a chemical change.
change in color, temp/change, light/heat, production of a gas (smoke),
creating a new substance (ash),
and it is unable to be reversed
200
Baking cupcakes are an example of a ____ change.
Bonus: (50 pts) Evidence
chemical change
Evidence- temp. change, color change
200
The apple turning brown is an example of a ____ property.
Bonus: (50 pts) Evidence
chemical change
Evidence: color change
200
A compound is defined as
a substance made of two or more elements CHEMICALLY combined or seperated
300
An element is______________________
pure substance made of one type of atom.
300
The sign of a chemical change when a solid substance is created while two liquids are being formed is a....
precipitate (PONIES)
300
Boiling water is an example of a ____ change.
physical change
300
Glass breaking is an example of a _____ change.
physical change
300
Mixtures are different from compound because
Mixtures are physically separated/combined
Compounds are chemically separated/ combined
400
Evidence when a new substance bubbles, fizzing, or odor change. This is called?
production of a gas (Girls)
400
What signs of chemical change would be present in a baking soda and vinegar reaction?
What is bubbles, production of a gas, and slight temperature change?
400
Freezing liquid is an example of a _____ change.
physical change
400
Making fresh lemonade is a___________
Bonus: (50 pts) Why?
physical change
Reversed by evaporating water
400
What are the names of the elements of Au and Ag.
Hint: It is a Precious Metal
Gold and Silver
500
Evidence of a new substance formed from a chemical change: 2 liquids combine to make a solid is called.....
production of a precipitate (ponies)
500
Explain the difference between a physical change and a chemical change.
Physical changes are simply changes to an object's appearance or state of matter.
Chemical changes produce a new substance and are very difficult to reverse.
500
A lit sparkler is an example of a _____ change.
Bonus: (25 pts) Evidence
chemical change
Evidence: Light/heat produce, temp. change
500
Leaves changing color is an example of a ______ change.
Bonus: (25 pts) Evidence
chemical change
Evidence- color change
500
Sugar is C6H12O6. Is this an element or compound and why?
Bonus: What is the name for each symbol?
Compound- it has 3 elements.
C- Carbon
H- Hydrogen
O- Oxygen