IMF and States of Matter

What is the correct definition of intermolecular forces?

• Forces of attraction between molecules

• Forces of attraction within a molecule

• Forces that cause molecules to grow

• Forces that prevent molecules from bonding

Match the following

• Very Strong IMF

• Solid

• Strong IMF

• Gas

• Weak IMF

• Liquid

Tags

NGSS.HS-PS3-4

Match the following

• Strong IMF

• Nonpolar Covalent

• Weak IMF

• Polar Covalent

• Very Strong IMF

• Ionic

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-1

Organize these options into the right categories

Groups:

(a) Ionic

,

(b) Polar Covalent

,

(c) Nonpolar Covalent

• Gases

• Hard and Brittle

• Moderate Melting Point

• Solids

• Low Melting Point

• Doesn't dissolve in water

• High Melting Point

• Usually dissolves in water

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-2

Organize these options into the right categories

Groups:

(a) Solid

,

(b) Liquid

,

(c) Gas

• doesn't flow

• strong IMF

• particles can slide past each other

• definite shape

• very strong IMF

• particles far apart from each other

• definite volume (water)

• vibrating in place

• takes volume of container

• flows well (water)

• takes shape of container (air)

• particles close together

• flows well (air)

• takes shape of container (water)

• definite volume (salt)

• expands and contracts

• weak IMF

Tags

NGSS.MS-PS1-4

Solid particles are very difficult to ​ (a)   because they have ​ (b)   .

Liquid particles are ​ moderately difficult to separate because they have ​ (c)   .

Gas particles are ​ (d)   separated because they have ​ (e)   .

• strong intermolecular forces
• separate
• easily
• weak intermolecular forces
• weaker intermolecular forces

Tags

NGSS.MS-PS1-4

Reorder the following from lowest to highest boiling point.

• Weak intermolecular forces

• Strong Intermolecular Forces

• Very Strong Intermolecular Forces

Use the data table to answer the following question.

Which substance has the strongest intermolecular forces?

• Substance 1

• Substance 2

• Substance 3

• Substance 4

Tags

NGSS.HS-PS1-3

1. Compound A has a melting point of 15°C and Compound B has a melting point of 100°C. Which compound has the STRONGEST intermolecular force?​ (a)  

2. Honey is ​ (b)   viscous than water. This means that honey has ​ (c)     intermolecular forces that water.

3. Solids, liquids, and gasses have different intermolecular strengths. Solids have the ​ (d)    intermolecular forces while gasses have the ​ ​ (e)   intermolecular forces.

• Compound B
• Compound A
• more
• stronger
• less
• weaker
• strongest
• weakest

Compounds: N-H ; C-P ; K-Cl

EN of H: 2.1

EN of Cl: 3.0

EN of K: 0.8

EN of N: 3.0

EN of P: 2.2

EN of C: 2.5

Strongest Intermolecular Force​ (a)   ​

Weaker Intermolecular Force​ (b)   ​ ​ (c)  

Weakest Intermolecular Force​ ​ (d)  

• K-Cl
• N-H
• C-P
• Polar Covalent

Tags

NGSS.HS-PS1-3

NGSS.HS-PS1-1