Vocabulary
Energy/Chemical Reactions
Periodic Table
Molecules and Compounds
Challenge
100
Anything that has mass and takes up space
What is matter
100
the ability to do work
What is energy
100
What is the atomic number
What is the # of protons
100
A molecule composed of two or more elements chemically combined
What is compound
100
How many neutrons does the element copper have? (mass #64, atomic #29
What is 35 neutrons
200
a trait that can be observed without changing the composition of the matter
What is physical property
200
Formed in a chemical reaction
What is product
200
# of electrons that go on the second ring
What is 8
200
True or false: MgO considered to be a molecule
What is TRUE
200
How is mass different from weight?
What is mass = amount of matter, weight = force of gravity on mass
300
Positive subatomic particle
What is proton
300
State of matter with the least amount of energy
What is solid
300
What an atom needs to be stable
What is 8 valence electrons
300
How many atoms of hydrogen are there in a compound of water?
What is 2
300
Why do atoms lose or gain electrons?
What is to become stable
400
A negative ion
What is anion
400
Amount of energy needed to start a reaction
What is activation energy
400
How you find the number of neutrons
What is atomic mass - atomic number = # of neutrons
400
True or False: All molecules are compounds
What is FALSE
400
O-17: ion or isotope? Say # of p, n, e
What is isotope; p = 8, n = 9, e = 8
500
trait observed when a substance's composition is changed
What is chemical property
500
A catalyst in a living organism
What is enzyme
500
the 6 most common elements found in nature
What are CHNOPS
500
This number tells you how many molecules there are
What is the coefficient
500
The difference between oxidation and reduction
What is oxidation = loss of electrons, reduction = gain of electrons
M
e
n
u