Chemistry III Honors Exam

filtration
solubility; kidney dialysis
distillation
boiling point; separating crude oil
centrifugation
density; separating whole blood into components
Properties of metals…
1. luster
2. malleble
3. ductile
4. good conducters
Properties of nonmetals…
1. dull
2. brittle
3. good insulators
Avagadro’s number
6.022 x 10 e23
Dalton’s atomic theory
1. Atoms are the smallest, discrete particles making up a chemical element.

2. Atoms cannot be created, subdivided or destroyed in a chemical reaction.

Which subatomic particle distinguishes one element from all others?
Proton
What is true about 1 mole?
Equal number of atoms
How are electrons placed in orbitals? Name the rule.
Single electrons must be clockwise. Counterclockwise electron completes each pair. – Hund’s Rule
Which scientist correctly placed elements in the Period Chart by increasing atomic number?
Moseley
Which scientist developed a mathematical equation describing electrons with four quantum numbers?
Schrodinger
Which scientist published chart with gaps and spaces providing room for more elements?
Mendeleev
Going down Group 1 elements, identify and explain what happens to electronegativy:
value decreases
Going down Group 1 elements, identify and explain what happens to atomic radii:
increases
Moving across Period 3 from left to right, identify and explain what happens to atomic radii:
decreases
Moving across Period 3 from left to right, identify and explain what happens to electronegativity:
value increases
1 inch
2.54 cm
1 liter
1.06 qts
1 kilogram
2.2 lbs
Entering grams to atoms problem into calculator:
Ex. 6.022E23 * 25.0/26.98
Grams to atoms
grams to moles > moles to atoms
x

Hi!
I'm Anna

Would you like to get such a paper? How about receiving a customized one?

Check it out