Physical & Chemical changes
A type of change that creates a new substance
What is a chemical change ?
The symbol Cl represents this common element found in swimming pools.
What is chlorine?
These substances are made of one type of atom and are found on the periodic table.
What are elements?
According to Newton's Laws.
Energy cannot be created or ___________.
What is destroyed?
Substances that are not evenly mixed?
What is heterogeneous mixtures?
Evidence of this type of change include an unexpected color change and gas being produced.
What is a chemical change ?
How many different elements are in CH3NaH?
What is 3 ?
Aluminum is an example of which type of element?
Metalloid , Nonmetal, Metal
What is a metal?
This is another term for heat energy?
2 words
What is thermal energy?
Another term for a homogeneous mixture is a?
What is a solution?
During this chemical reaction iron atoms are exposed to oxygen and form the substance ______.
What is rust ?
A substance made from atoms that all have the same number of protons is known as an _________ .
What is an element?
This type of heat energy comes from the sun?
What is radiation or radiant energy?
What are two ways to describe matter based on size?
What are mass and volume?
What is a common example of a physical change?
What is folding something, breaking something, chewing something?
A compound is made from at least two ___________ .
What are substances?
Oxygen is an example of a ___________.
Metal , Nonmetal , Metalloid?
What is a nonmetal?
This is another word for energy in motion.....
What is kinetic energy?
What are to ways to describe matter NOT based on size?
What are density, melting point, boiling point, electric and thermal energy?
How many atoms are in the compound CaCo3?
What is 4?
These type of substances are semiconductors?
Metals , Nonmetals, Metalloids?
What are metallloids?
A pot holder used to touch a pan is an example of a _______ _________ .
What is a thermal insulator?