Unit 1: Covalent bonds and chemical reactions

Question 1

What is electronegativity?

Answer 1

natural attraction for electrons in elements

Question 2

polar covalent bonds

Answer 2

sharing of electrons unequally. form partial charges

Question 3

non-polar covalent bonds

Answer 3

atoms have similar electronegativity, sharing electrons almost equally

Question 4

ionic bonds

Answer 4

no sharing, either took or gave electron. attraction of opposite charges

Question 5

what are the two types of ions?

Answer 5

cation and anion

Question 6

Cation

Answer 6

positive ion formed when atom loses an electron, two first columns in period chart

Question 7

anion

Answer 7

negative ion formed when atom gains electron, far right column on period table

Question 8

single bond shape is

Answer 8

tetrahedral shape, created by sp3 hybrid orbital, rotate

Question 9

double bond shape is

Answer 9

formed trigonal plane, can’t rotate

Question 10

tripe bond is shaped

Answer 10

line, flat

Question 11

Equilibrium is equal

Answer 11

energy and equal rate forward and backward

Question 12

equilibrium is NOT equal

Answer 12

amounts

Question 13

how the 4 main elements in relation to equilibrium

Answer 13

-O>N>C=H+

Question 14

Add reactant

Answer 14

go right more product

Question 15

add product will

Answer 15

go left more reactant

Question 16

take away reactant will

Answer 16

make reactant go left

Question 17

take away product will

Answer 17

make product go right

Question 18

K= what over what

Answer 18

product over reactant