Ch 5 Matter: properties and changes

What are examples of physical changes? (check all that apply)

• boiling

• cutting

• rusting

• rotting

• crushing

Which are chemical properties (select all that apply)

• reactivity

• toxicity

• flammability

• corrosion

How many oxygen atoms are in this chemical formula?

• 6 oxygen atoms
• 2 oxygen atoms
• 3 oxygen atoms
• 4 oxygen atoms

What is the boiling point of water

• 212 F

• 300 F

• 90 F

• 400 F

The fact that matter is not created or destroyed in any chemical or physical change is called the

• law of conservation of chemistry

• law of conservation of mass

• law of conservation of volumet

• law of gravity

Hardness, texture, color, and freezing point are examples of

• chemical changes

• chemical properties

• physical changes

• physical properties

How many atoms of Oxygen (O) are in limestone CaCO₃

• 0

• 1

• 2

• 3

• 4

if something can burn then it is-------------

• flammable

• cold

• easy to break

• turns black

Which form of matter has a definite shape like this picture?

• liquid
• solid
• gas
• clay

How many different elements are in this compound of baking soda NaHCO₃

• 1

• 2

• 3

• 4

• 5