Unit 5 HW #1: Lab Data and Bond Type

Depending on the type of attraction between particles, substances are classified as ionic, molecular, atomic (network), and atomic (metallic) substances.

Sample: The substance is a white crystal solid and it dissolves in water.

Which substance type could this be? (Multiple correct)

• Ionic Substance

• Molecular Substance

• Atomic Network Substance

• Atomic Metallic Substance

Sample: The substance is a white crystal solid and it dissolves in water.

Which test would help determine if the substance is made of ions?

• Melting Point

• Conductivity as a solid

• Conductivity as a solution

• Luster of the crystal

A sample is a white crystal solid.

The following lab data is collect:

Dissolves in water

Does not conduct as a solid

Conducts electricity as a solution.

What type of substance is this?

• Ionic Substance

• Atomic Metallic Substance

• Atomic Network Substance

• Molecular Substance

A sample is a white crystal solid.

The following lab data is collect:

The solid has an odor.

Does not dissolve in water.

Dissolves in polar and nonpolar solvent.

Does not conduct as a solid

What type of substance is this?

• Ionic Substance

• Atomic Metallic Substance

• Atomic Network Substance

• Molecular Substance

A sample is a white matte powder.

The following lab data is collect:

The solid does not dissolve in any solvent.

The solid does not conduct as a solid.

The solid does not melt.

What type of substance is this?

• Ionic Substance

• Atomic Metallic Substance

• Atomic Network Substance

• Molecular Substance

The sample pictured to the left is analyzed.

The following lab data is collected:

The solid does not dissolve in any solvent.

The substance conducts as a solid

The solid does not melt.

What type of substance is this?

• Ionic Substance

• Atomic Metallic Substance

• Atomic Network Substance

• Molecular Substance

The difference in electronegativity can be used to classify the bond type in a substance.

What type of bond is present in the following substances?

Groups:

(a) Ionic Bond

,

(b) Polar Covalent Bond

,

(c) Non Polar Covalent Bond

• HF
• SO2
• CO2

• KBr
• NH3
• O2
• F2
• N2
• HCl

• LiF
• CaCl2

• BaS
• H2O
• NaCl
• H2
• MgO

Lab tests help us identify the type of particle present in a substance.

Match the lab test with what it helps us understand

• Molecular Substance property

• Low melting point

• Ionic Substance Property

• Does not dissolve in any solvent or conduct in any form

• Atomic Network Substance Property

• Conducts as a solid

• Atomic Metallic Substance property

• Dissolves in water and conducts in solution

Analyze the data in the data table.

Classify the substance type based on the lab data.

• Network Atomic Substance

• Substance A

• Ionic Substance

• Substance C

• Molecular Substance

• Substance B

• Metallic Substance

• Substance D