Physical Properties
What is the definition of a physical property?
A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance.
What is the definition of of a chemical property?
Chemical properties of matter describe its potential to undergo some chemical change or reaction by virtue of its composition.
What is the definition of a physical change?
A usually reversible change. A change that does not disrupt the composition of the substance.
A usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance.
Find the density of water if the mass of your water sample is 12g and the volume is 12ml.
1 g/ml
Name one example of a physical property.
Length, Color, Density, Mass, Elasticity, Volume, Pressure, Luster.
Name one chemical property.
Toxicity, Oxidation States, Heat of Combustion, Chemical Stability, Flammability, Coordination Number, Reactivity, Possible Chemical Bonds, Enthalpy of Formation.
Name one physical change.
Breaking glass, mixing food, shredding paper, folding paper, melting ice, chopping wood, cutting hair, dry ice sublimation, boiling water, breaking egg.
Name one chemical change.
Combustion, rotting, rusting, digestion.
You have 1.25 hg of teddy bears. What is the mass of your teddy bears in cg?
12,500 cg.
Name a physical property of water.
Examples: Clear, volume of water in a glass
Name a chemical property of salt.
Chemical stability, ionic bonds.
True or false.
Silver tarnishing is a physical change?
False, it's a chemical change.
What is NOT a clue of a chemical change?
Change in odor, change in color, change in shape, change in energy
Change in shape
You have a solid square with a density of 16g/cm. The measurement for one side of the square is 6cm. What is the mass of the square?
3456 g
Is weathering a physical or chemical property?
Physical
True or false.
The Statue of Liberty is an example of a chemical property.
Mostly true... but patination is a mix of chemical and physical properties (oxidation and weathering).
What happens in a physical change?
composition changes, composition stays the same, form stays the same, mass is lost.
Composition stays the same
When silver metal comes in contact with sulfur, silver sulfide forms and the silver appears darker. This is a
change of form, chemical change, change of state, physical change
Chemical change
You have a round bucket of water. The density of the bucket of water 1g/ml. The mass of your bucket is 50g. The mass of the bucket and the water is 300g. What is the volume of the water?
250 ml
Is Ms. Fisher's awesomeness a physical or chemical property?
Physical Property...It is measurable on a scale of coolness and your opinion of me does not change my composition... I'm still awesome.
Is solubility a physical or chemical property?
Physical Property
What property stays the same in chemical and physical changes?
Mass, Density, Shape, Arrangement of the Particle
Mass
How does the law of conservation apply to chemical changes?
Mass is neither created or destroyed in chemical reactions.
The density of a substance is 1.63 grams per milliliter. What is the mass of 0.25 liters of the substance in grams?
407.5 g