Coachbook Chapter 1 Lesson 4:Physical and Chemical Properties

Physical Properties

Characteristic that can be observed or measured without changing the IDENTITY of the substance

• Density, Volume, Mass, weight, length, width, height

• States of matter to include phase changes (PHASE CHANGES ARE PHYSICAL!!!)

• Anything observable through your senses:

  •   color, taste, odor, appearance, texture, hardness, luster

• Elasticity, ductility, flexibility, malleability

• viscosity, solubility, conductivity, permeability

• magnetism

Chemical Properties:

Characteristic that determines how one substance will interact with other substances during a chemical reaction

• oxidation

• flammability

• toxicity

• radioactivity

• combustibility

• tarnish

• pH

• reactivity

Multiple Choice

Which of the following is an example of a chemical change?

• water evaporating

• carbon joining with oxygen to form carbon dioxide

• ice cream melting

• salt dissolving in water to form a solution

Multiple Choice

What happens during a physical change?

• New substances are formed?

• The identity of the substance is changed

• a chemical reaction occurs

• the form of a substance changes, but NOT it's identity

Multiple Choice

When enough heat is added to liquid water, it boils, and bubbles of water vapor rise to the surface and into the air. Which type of change is this, and why?

• a chemical change, because gas is produced

• a chemical change, because heat is produced

• a physical change, because the identity of the substance changes

• a physical change, because the substance changes state

Multiple Choice

a sample of aluminum has a volume of 3.0 cm³ and a mass of 8.1 g. Which is the density of the aluminum?

• 2.7 g/cm³

• 5.1 g

• 11.1 cm³

• 24.3 g/cm³