CHEM TEST STUDYYY

Question 1

Nonpolar Covalent

Answer 1

Electrons shared EQUALLY, same EN (equal pull for electrons)

Question 2

Polar Covalent

Answer 2

Electrons shared UNEQUALLY, diff. EN (pull for electrons uneven)

Question 3

higher electronegativity because..

Answer 3

more protons in nucleus

Question 4

Why would two atoms with same EN form a nonpolar covalent bond?

Answer 4

Because they are equal

Question 5

water is the universal

Answer 5

solvent

Question 6

Why is water polarity important?

Answer 6

To help dissolve things, creates a slightly positive charge on hydrogen and a slightly negative charge on oxygen, contributing to water’s properties of attraction.

Question 7

polar molecule

Answer 7

uneven

Question 8

nonpolar molecule

Answer 8

even

Question 9

pH of 1-6

Answer 9

acid

Question 10

pH of 7

Answer 10

neutral

Question 11

pH 8-14

Answer 11

base

Question 12

If the pH of a solution is increased from pH 5 to pH 7, it means that the

Answer 12

100 times less than what it was at pH 5

Question 13

A buffer released H+ when solutions get more __________

Answer 13

basic

Question 14

A buffer absorbs H+ when the solution gets more

Answer 14

acidic

Question 15

hydroliphic

Answer 15

polar covalent compounds

Question 16

hydrophobic

Answer 16

nonpolar covalent compounds

Question 17

london dispersion forces

Answer 17

a temporary attraction in nonpolar molecules due to the dipoles in said molecule

Question 18

dipole-dipole forces

Answer 18

occurs between the positive end of one polar molecule and the negative end of a polar molecule

Question 19

o-h bonds

Answer 19

when a hydrogen atom is bonded to either oxygen, nitrogen, or flourine

Question 20

ionic

Answer 20

BETWEEN A METAL AND NONMETAL atoms attract opposite charges and the positive ion tends to lose its electrons to a nonmental negative charge

Question 21

covalent

Answer 21

atoms fight over electrons, as a result, the atoms get pulled together (BOND)