Physical vs. Chemical Properties
Physical or Chemical Change?
Chemical or Physical Change?
States of Matter
Phase Changes
100
This type of physical property is defined as "how quickly a liquid can flow" is
What is viscosity?
100
True or False:All physical changes are reversible
False: Ex- cutting your hair is irreversible.
100
Burning of candle wick is _____________ because ______.What is a chemical change because the wick changes color and as it burns both light and heat are given off?
100
This is a state of matter in which the material has a definite volume, but not a definite shape (fits the shape of the container)
What is a liquid?
100
Phase change from liquid to gas
What is boiling?
200
This property is the ability of a substance to allow heat to flow
What is conductivity?
200
Water boiling into steam is this type of change (explain)
What is a physical change? (Phase changes do not change the chemical composition of a material)
200
Baking a cake is an example of ___________ change because ____________
What is chemical change because there is a color change and a new substance is formed?
200
If you are below the melting point of a substance you have this state of matter.
What is a solid?
200
Water vapour forming on the outside of a cold glass is an example of ______________.
What is condensation?
300
These are two physical properties that can only apply to a solid. Explain each.
What is hardness (ability to resist scratching) and malleability (ability to be hammered without shattering)?
300
Iron rusting is this type of change (explain)
What is chemical (a new substance is formed)?
300
Cutting wood is an example of _____________ because _________.What is physical change because there is a change in shape/size?
300
This phase of matter retains its shape and volume and has the strongest attractive forces
What is a solid?
300
The phase change from solid to liquid.
What is during a melting?
400
These are two chemical properties of matter (Explain each)
What is flammability (ability to burn in the presence of oxygen) and reactivity (how well a material will react with other substances to produce a new substance)?
400
Combining vinegar and baking soda is this type of change
What is a chemical change (formation of a gas)?
400
Melting ice cream is an example of ____________ because _________.What is physical change because it is a change in state of matter (solid to liquid)?
400
If you are above the freezing point of matter but below the boiling point of matter you have this state.
What is a liquid?
400
Phase change from liquid to solid.
What is freezing?
500
This is the difference between a physical and chemical property
What is a chemical property will involve a material's ability to form new substance (through burning or reacting chemically with other materials) we need to see the change to recognize the chemical property
while a physical property is used to identify a substance without changing its composition
we can use our senses to observe physical properties without making a change to the material
500
These are three indicators of a chemical change:
What is
a) change in color (used with other things)
b) formation of a gas
c) formation of a precipitate
d) production of heat (gives off heat)
e) production of light (gives off light)
500
Painting wood is an example of ______________ because__________.What is physical change because there is a color change but no other indicators that would allow us to recognize a chemical change?
500
This phase of matter (one of the three common phases) has the greatest kinetic energy and least attractive force so the molecules are spread far apart and move very fast.
What is a gas?
500
At room temperature (20 degrees celsius) what state of matter is alcohol? What is liquid?