Matter
What 3 states is matter generally found in?
Solid, liquid, gas
What is the definition of physical properties of matter?
Properties that can be observed or measured without changing the identity of the substance.
True or false: Characteristic properties are ALWAYS the same for a substance
True
What state of matter is a glass of frozen ice cubes in?
Solid state
How many siblings do I have?
2 brothers
True or False: Matter makes up everything including living AND nonliving things
TRUE
Give 2 examples of physical properties
Size, mass, volume, shape, texture
Give two examples of characteristic properties of matter
freezing/melting point, boiling/condensing point, density, solubility, color, electrical conductivity
What state of matter is water coming out of faucet in?
Liquid
What state was I born in?
Connecticut
What is the definition of matter?
Anything that has mass and occupies space.
What are chemical properties? (Definition not examples)
Describe how the substance changes into other substances.
Explain why size, mass, volume, and shape are NOT characteristic physical properties.
These properties can be changed without changing the substance itself. For example, water coming from a faucet has the same characteristic properties as water in a glass even though it has different size, mass, and volume.
Describe how the same substance can be in all 3 states of matter.
What college did I go to?
Boston College
What is the 4th state of matter that we hardly discussed?
Plasma
How do you investigate chemical properties?
You must change the identity of the substance. This involves a chemical reaction to change one substance into another.
Which of the following is NOT a characteristic property of matter: density, solubility, mass, melting point.
Mass
You have what you suspect are two of the same substances in front of you. They are the same mass, height, volume, and color. You decide to test their density and find one is slightly more dense than the other. Are they the same substance? Why or why not?
They are not because density is a characteristic property of matter meaning it is ALWAYS the same. Two substances with different densities are two different substances.
What are the names of my siblings?
Michael and Tommy
Explain why boiling and freezing points are NOT chemical properties of matter.
These are physical changes that can be reversed. Neither boiling nor freezing changes a substance into a different substance.
Name 2 reactions that can be used to examine a substance's chemical properties.
Burning the substance to examine its combustibility
Treating the substance with an acid or base to determine whether it is one or the other
Combining it with oxygen to determine its oxidation state
Combining it with living matter to examine toxicity
Explain how you can figure out if two substances of different mass, volume, and height are the same substance.
Testing for characteristic properties. For example: if you suspect both substances are water you can find the boiling point of each to see if they both boil at 100ºC.
Suppose you are given two mysterious substances that you suspect are the same substance. What 3 physical properties might NOT be the same even if they are the same substance?
height, volume, mass
What did I study in college?
Economics and environmental studies