Unit 4

Question 1

What are Molecular Compounds​ made of?

Answer 1

two or more nonmetals. ​

Question 2

What are Covalent atoms made of?

Answer 2

Nonmetal + nonmetal

Question 3

What are Acids made of?

Answer 3

Hydrogen + nonmetal

Question 4

Which elements are exceptions to the octect rule?

Answer 4

Hydrogen (H)- only needs two
Boron (B)- only needs 6
Beryllium (Be) - only needs 4

Question 5

What is the definition of Dipole?

Answer 5

Dipole: a molecule with 2 partially charged ends, or poles

Question 6

Which type of repulsive forces are found in molecules?

Answer 6

Dipole-dipole forces. Dispersion forces. Van der waals forces.

Question 7

Linear bond angle

Answer 7

180 degrees

Question 8

Trigonal Planar bond angle

Answer 8

120 degrees

Question 9

Tetrahedral

Answer 9

109.5 degrees

Question 10

Trigonal bipyramidal

Answer 10

90, 120, 190 degrees

Question 11

Octahedral

Answer 11

90 degrees

Question 12

Ionic bonds

Answer 12

metal + nonmetal (or polyatomic ion)

Question 13

What happens to electrons in an Ionic Bond?

Answer 13

Electrons are transfered to form a bond. (no sharing)

Question 14

Ionic bonds have ______ melting points.

Answer 14

Ionic Bonds have high melting points.

Question 15

What happens with electrons in Covalent Bonds?

Answer 15

Electrons are shared between non-metal atoms

Question 16

What happens with electrons in Metallic Bonds?

Answer 16

The sea of electrons are by all atoms and can move thrpught the structure.

Question 17

What is the EN in ionic bonds?

Answer 17

EN is greater than 2.0