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Mr. Berlin's Chemistry.
What is matter?
Anything that has mass and volume.
Name 3 solids that are solid at room temperature.
brick, rock, bones.
Pure substances have a
unique set of chemical and physical set of properties.
What is a physical property?
Can be measured or observed without changing the identity or composition of a substance.
What are the 7 examples of a physical property?
density, hardness, taste, color, odor, melting point, mass.
What is a chemical property?
Indicates how a substance will react with other substances.
What is a chemical property?
only observed when the substance undergoes the chemical change.
Name the 7 physical properties of water.
colorless, odorless, liquid at room temperature, tasteless, freezing point 0C, bioling point 100F, flow.
What are the 2 chemical properties of water?
reacts with liquid and reacts with Baking Soda.
What is a physical change?
changing in apperance without changing composition.
What is the definition of a chemical change?
One or more substances reacting to form new substances with different chemical and physical properties
What are 3 examples of a chemical change?
rusting, decaying, digestion
paper burning is a…
a chemical change
Density is an example of…
a physical property of a substance
What is on the left side of the arrow in a chemical equation?
the reactant
pure substance always have uniform and…
composition.
Describe ice.
less dense, definite volume, indefinite shape.
Name 3 substances that stay liquid at room temperature.
soda, blood, water.
Name 3 substances that stay a gas at room temperature.
nitrogen, carbon monoxide, hellium.
What is the diffrence between a pure substance and a mixtures?
A pure substance hasn’t been mixed yet. A mixture has other elements or particles.
What is the diffrence between a compounds and an element?
A compound is formed when elements are chemically combined. An element is a pure substance on the periodic table.
What is a homogenous mixture?
stays the same within all parts of the mixture
What is a heterogenous mixture?
can be picked apart or seperated.
What is a mixture?
Two diffrent substances that can be physically mxed together.
What is energy?
anything that can do work or produce heat.
What is weight?
the force of gravity acting on a objects mass.
What is mass?
the amount of matter in an object.
What do solids have?
definite shape, definite shape, not compresable, high desnity.
What does a liquid have?
indefinite shape, definite volume, not compressible, less dense
What does a gas have?
definite shape, indefinite volume, compressible, low density
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Flashcard (40)