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Chemistry
Finall
Question | Answer |
---|---|
mix something with something = ?? | chem reaction |
put grams in = ?? | same # comes out 14 cookies + 14 milk out = 28 g... |
average atomic mass? | The number at the bottom of the box (periodic table) Weighted Average of all of the isotopes of the element, (has decimal points) THE PERCENT GOES IN THE PARENTHESE15(150) + 17(17)= . . . atomic mass |
hunds rule? | Electrons must fill orbitals one at a time b4 they can double up. |
Mendeelev? | created a peridoc table arranged by atomic mass. |
Aufbau? | electrons are lazy, they occupy the lowest energy lvl first. |
Thompson? | developed the plum pudding atomic model. |
Rutherford? | discovered the nuclues. |
Dalton? | Discovered the 1st scientific atomic theory. |
groups? | run up and down |
atomic mass? | in decimal form. weighted average of an isoptope |
anions? | likely to attract electrons in a bond. |
frequency? | # of waves per amount of time |
gama radition? | most likely to cause damage to human tissue! |
alphaparticle? | two protons, two nuetrons like a HELIUM NUCLUES |
metallic bonds? | bonds between METALS using free floating valence electrons; allow solids to conduct electricity |
covalent bonds? | share electrons ONLY between nonmetals # known as MOLECULAR COMPOUNDS!! |
ionic bonds? | metal and nonmetal GOOD conductor of electrical current |
carbonmonoxide? | Co#triple covalent bond so does nitrogen gas N under 2 |
no what in carbondioxide? | no single bonds (Co under 2) |
metal is not . . .? | a good insulator! |
noble gas b4 aluminum . . . | same configuration |
neon cannot have both what. . .? | covalent and ionic bonds with at least 3 elements |
molecular compounds are . . .? | covalent |
covalent bonding. . .? | 1 mono- 2 di- 3 tri- 4 tetra- 5 penta- 6 hexa |
coefficents in a reaction are . . .? | moles NOT grams ( only equal on both sides) |
limiting reagent? | when the first reactant is used up |
kinetic theory of gases? | absolute zero is the temp. that the motion of particles stop 1. particles of a gas move independantly of one another# 2. move rapidly/quickly# 3. particles are FAR APART |
zero K? | Zero Calvin |
matter flows as . . . what? | a gas an a liquid but not a solid |
the 1st particle to evaporate has to have the . . . ? | highest kinetic energy |
liquid boils when . . . ? | the vapor pressure is equal to the atmophere |
when you go up a mountain the boiling point . . .? | decreases bcuz the atmosphere pressure decreases. |
5 physical properties? | smell # taste # texture #melting point #color |
chemical reaction? | when chemicals combine and form new reactants |