States of Matter
The FOUR states of matter in order of energy from least to most.
What is solid, liquid, gas, and plasma?
H2O is an example of a(n)
What is a compound?
The periodic table organizes all of the _____________ in the world.
What are elements?
Density, solubility, color, odor
What are physical properties?
The reactants must always be _________ to the products.
What is equal?
When atoms move from a solid to a liquid, what happens to them?
What is the particles move further apart, energy increases, and attraction between particles decrease?
The difference between a molecule and a compound
What is molecules are two or more atoms chemically bonded while compounds are two or more elements chemically bonded?
The atomic number is the same as
What is the number of protons?
When water boils, that is a ______________ change.
What is a physical change?
Is this equation balanced?
2 Na + H2O --> NaOH + 2H2
What is no?
The type of energy that differentiates the states of matter
What is thermal energy? (Heat/kinetic energy also applicable)
The difference between a homogeneous and heterogeneous mixture (include examples)
What is homogeneous mixtures look the same throughout the substance while heterogeneous mixtures have visible different parts?
Name one characteristic of each... metal, nonmetal, and metalloid.
What is . . . ?
What is chemical property?
This number in the chemical equation tells you how many molecules you have.
What is a coefficient?
These 3 phase changes can only occur when thermal energy is added.
What is melting, vaporization, sublimation?
Nickel is an element with an atomic number of 28 and atomic mass of 57. Describe the number of particles in a single atom of Ni
What is 28 protons, 29 neutrons, and 28 electrons?
The element Argon has an atomic number of 18 and an atomic mass of 40 . The element phosphorous has an atomic number of 15 and an atomic mass of 31 . How many more electrons does Argon have than Phosphorous.
What is 3 electrons
A chemical change can be determines if these 5 pieces of evidence of a chemical change are observed.
What is changing odor, unexpected color change, production of light, gas formation, precipitate forming?
This equation is . . .
2Fe + 4O2 -> 6FeO2
What is unbalanced?
The difference between plasma and gas
What is plasma substances are charged?
A diatomic molecule is when two of the same element is bonded together. An example would be O2. Diatomic molecules can be classified as ___________.
What is element?
Periods on the periodic table share one common characteristic
What is the number of energy levels?
Mitchell was cooking in the kitchen. He boiled water, fried an egg, cut up apples, baked cookies, and burned a piece of toast. List which ones were chemical changes.
What is frying an egg, baking cookies, burning toast ?
During a science lab investigating chemical reactions, Cayden placed an alka seltzer tablet in a ziplock bag. They quickly added 50 grams of water and quickly sealed the bag. If the total mass of the bag was 150 grams before the reaction what was the total mass after the reaction was completed?
What is 150 grams?