Properties of Matter
Phases of Matter
Atomic Structure
Chemical Reactions
Mystery???
100
Definition of matter
Anything that has mass or takes up space.
100
What is the phase of matter in which the particles are packed tightly, have a small amount of energy, and are only vibrating?
A solid
100
What is an atom?
The smallest unit of matter.
100
A chemical equation is...
chemical formulas & symbols used to represent what happens in a chemical reaction
100
What is volume?
How much space something takes up.
200
What is density?
The amount of matter in a given space.
200
What theory states that the particles (atoms) that make up matter are in constant motion?
the Kinetic Theory of Matter
200
What is the location of electrons in an atom?
The electron cloud.
200
A molecule is...
Composed of 1 or more atoms.
200
A valence electron is...
The number of electrons on the outer shell.
300
Definition of mass.
The amount of matter in an object.
300
What phase change causes a substance to change from a solid to a liquid?
Melting
300
The center portion of the atom is called the...
Nucleus.
300
The reactant is found on what side of the equation?
The LEFT side.
300
Products are what side of a chemical equation?
The RIGHT side.
400
What is a physical change?
A change that affects one or more physical properties of a substance. (does NOT form a new substance)
400
What is evaporation?
When a substance changes from a liquid to a gas.
400
An electron is a..
Negatively charged particle located outside the nucleus.
400
A chemical formula is...
A shorthand way to represent a substance using chemical symbols.
400
A coefficient is...
the number placed before an elements symbol in a chemical formula to represent the number of molecules.
500
What allows a substance to dissolve in another?
Solubility.
500
What phase of matter has the most energy?
Gas.
500
Where is the neutron located?
Inside the nucleus.
500
The Law of Conservation of Matter states...
Matter cannot be created or destroyed in a chemical reaction.
500
An odor indicates a...
Chemical change.
M
e
n
u