Matter and Change
Name all the branches of chemistry
Organic, Biochem, analytical, physical, inorganic, theoretical
What is the law of conservation of mass
Mass is neither created nor destroyed
What is light's dual nature
can be a wave and particle
Who left gaps in the PT for future disoveries
Mendeleev
What reaction type is this? A + B --> AB
Synthesis Reaction
What type of mixture is our friend the groundhog
Heterogeneous
What did the gold foil experiment discover?
Nucleus
6.626 x 10^-34 J*sec
The physical and chem properties of the elements are periodic functions of their atomic #s is what law
Periodic law (Henry Moseley)
What will combustion of hydrocarbons always produce?
Carbon dioxide and water
Neither definite volume nor definite shape
Gas
Who created the plum pudding model and what did it show?
Thompson, negatively charged particles
What do lambda and nu represent?
Frequency, wavelength
Atomic Radius has what trends and the trend is caused by what?
Increases right to left and top to bottom because of increasing positive charge in nucleus
Evidence that a chem reaction may have occurred?
change in; temp, color, odor. Gas bubbles, appearance of precipitate
Which physical property does NOT depend on the amount of matter present
Intensive - MP, BP, density
Which two parts of Dalton's theory were incorrect
#2,(atoms of same element can differ in mass; isotopes) #3(atoms can be subdivided)
What elements orbital notation is 1s^2 2s^2 2p^6 3s^2 3p^2
Silicon
What is electronegativity?
Elements ability to attract electrons in a chem bond. Increases down to up and left to right
What makes a double replacement equation work?
List the four properties of metals
Malleable, ductile, tensile, luster
Who proposed the atomic model in which electrons surround a positive nucleus
What is Pauli Exclusion
a max of 2 e- can occupy a single orbit if they have opposite spins
Name the remaining 3 periodic trends
Electron Affinity, Ionization Energy, Ionic Radius
Single replacement; the element that replaces the one in the compound must be more ____ than the element in the compound
active