Chem Final

Question 1

Polar Covalent

Answer 1

two elements on right side (both nonmetals) of periodic table

Question 2

Double Bond

Answer 2

a covalent bond that is formed when two atoms share four electrons

Question 3

Ionic Bond

Answer 3

the bond that forms between a cation and an anion that is created by the attraction between oppositely charged particles

Question 4

Acid

Answer 4

starts with an H

Question 5

Ionic

Answer 5

cation(+) and anion(-) (cation has to be first)

Question 6

Binary Molecule

Answer 6

2 non-metals together

Question 7

Precipitation reaction

Answer 7

a reaction in which a solid is formed from two or more soluble reactants

Question 8

Oxidation-reduction reaction

Answer 8

a reaction in which electrons are transferred from one chemical species to another

Question 9

Binary Compound

Answer 9

a compound that contains only two different elements

Question 10

Pure covalent bond

Answer 10

a bond produced when electrons are shared equally between two atoms

Question 11

Atomic Size

Answer 11

Increases left to right on periodic table

Question 12

Ionization Energy

Answer 12

Increases left to right on periodic table

Question 13

Metallic Character

Answer 13

Increases right to left

Question 14

Molecular formula

Answer 14

show the number of each type of atom in molecule
Ex:N2O4

Question 15

Precision

Answer 15

a measure of how close repeated measurements are to each other

Question 16

Accuracy

Answer 16

a measure of how close a measurement is to the actual value

Question 17

Exceptions to Octet Rule

Answer 17

-Ions or molecules with an odd number of valence electrons.
-Ions or molecules that are stable with less than an octet.
-Ions or molecules with more than eight valence electrons (an expanded octet)

Question 18

Precipitation reaction

Answer 18

a reaction in which a solid is formed from two or more soluble reactants

Question 19

Oxidation-reduction reaction

Answer 19

a reaction in which electrons are transferred from one chemical species to another

Question 20

Neutralization reaction

Answer 20

-the reactants are an acid and a base, the products are often a salt and water, and neither reactant is the water itself
- Acid + base -> salt + water