BWA 5 review

Question 1

Which of the following is true of the molecule ethylene?

Accepted Answer

symmetrical and nonpolar

Question 2

Which of the following is true regarding the hydrogen bonding in DNA molecules?

Accepted Answer

to break hydrogen bond the external force must be stronger

Question 3

Of the following molecules which ones are polar?

Accepted Answer

2 and 3

Question 4

determine the correct bond polarity and and overall polarity of the following molecule. ammonia

Accepted Answer

polar molecule, polar bonds

Question 5

which is not a characteristic of ionic compounds

Accepted Answer

malleable

Question 6

Of the following answer choices, which geometry shape is not shown?

Accepted Answer

square pyramid

Question 7

how well were you able to answer the last 9 questions, are you ready for the exam?

Accepted Answer

No, help me please, Yes, some what

Question 8

Which of the following center atoms does not follow the octet rule?

Accepted Answer

1 & 4

Question 9

Which of the following characteristics/ features apply to the CH4 molecule?

Accepted Answer

1 and 4

Question 10

How comfortable are you with this review 1 (bad) - 10 (great)

Accepted Answer

4, 1, 7, 10

Question 11

what is the bond angle in the following molecule?

Accepted Answer

120

Question 12

in which of the following molecules do we experience dipoles in?

Accepted Answer

polar

Question 13

Which of the following molecules has a dipole in it?

Accepted Answer

NCl3

Question 14

When dealing with polarity of bonds and molecules, which one of the following can never exist?

Accepted Answer

nonpolar bonds, polar molecule

Question 15

True or false? The melting point of molecular compounds is usually higher than ionic compounds?

Accepted Answer

False

Question 16

What geometric shape does CH4 have?

Accepted Answer

Tetrahedral

Question 17

Determine the polarity of the following molecule: CF4

Accepted Answer

nonpolar

Question 18

What is the strongest force in the following molecule?

Accepted Answer

dipole - dipole

Question 19

when we have a metal + a nonmetal, which type of bonding do we experience?

Accepted Answer

ionic

Question 20

When Al becomes an ion, what charge does it take on?

Accepted Answer

+3

Question 21

These are the Lewis dot structures for CO3 2-, which of the following statements is correct?

Accepted Answer

they are resonance structures

Question 22

Which subatomic particles are involved with chemical bonding?

Accepted Answer

valence electrons

Question 23

oxygen contains 6 valence electrons, so O2 would contain a _________ bond.

Accepted Answer

double

Question 24

Starter question: who is your homeroom teacher?

Accepted Answer

Mr. Whatley

Question 25

which one of the following is NOT true when comparing molecules boiling points?

Accepted Answer

in covalent bonded molecules the boiling point is increased

Question 26

Which of the following formulas represents a tetrahedral?

Accepted Answer

CH4

Question 27

Which type of covalent bonds do not share electrons equally?

Accepted Answer

polar

Question 28

Rank the IMF's in increasing order : London dispersion forces, ionic, hydrogen, dipole-dipole.

Accepted Answer

London dispersion, dipole dipole, hydrogen, ionic

Question 29

Which of the following statements are true about methane?

Accepted Answer

does not conduct electricity and has a low boiling point

Question 30

Which of the following is the correct way to write an ionic compound?

Accepted Answer

sodium chloride

BWA 5 review

Questions 30

BWA 5 review

Questions 30