Chemical Properties
Define chemical properties
A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction.
Define physical properties
A physical property is any property that is measurable, whose value describes a state of a physical system.
Define physical changes
Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.
Define chemical changes
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.
Define matter
Everything around us. Anything that has mass or takes up space.
Name a chemical property of matter.
Heat of Combustion, reactivity, flammability, etc.
Name a physical property of matter
Length, density, color, ect.
Give an example of a physical change.
Chopping Wood, Crushing a can, etc.
Give an example of a chemical change.
Boiling an egg, etc.
What are the three states of matter.
Solid, Gas, Liquid.
Why are chemical changes important to science?
Verbal Answer
How can Physical Properties be observed?
Our five senses, touch, smell, hear, taste, sight.
If I left a metal chain in the rain what will happen?
It will rust.
If I am by a fire and Andrew throws a piece of paper in what will happen?
It will burn. Gosh Boston think it through.
What state of matter is a cube of ice.
Solid
Name 3 chemical properties in 5 seconds.
Starting now.
Name 5 physical properties in 8 seconds
Starting now.
True or False: If Amri rips his page of homework out of frustration is that a chemical change?
For starters, Amri would be mad but it would not be a chemical change, it would be a physical change. False.
True or False: If Mr. Mac feels hungry and he makes a cake is that a chemical change?
True.
True or False: Am I matter?
True.
What do chemical and physical properties have in common?
Why is color a physical property?
Because you can see it.
True or False: If Mr. Cates goes to the barber shop to dye his hair for a little bit, is that a chemical change?
False.
True or False: If Mr. Voney goes to dye his hair permanently, is it a chemical change?
True
What state of matter does a helium balloon go into?
Gas