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WorksheetsChem Test 1 Vocab
Total questions: 26
Worksheet time: 22mins
Define "scientific method"
Define "chemistry"
the study of matter and the changes that it undergoes
the study of chemicals and how to properly handle them
the study of matter and its composition
The study of matter and its properties
Define "matter"
important chem stuff
anything that is formed in a given area
anything that has mass and occupies space
what elements are composed of
Define "solid"
state of matter with with no shape, and definite volume
state of matter with definite shape, definite volume
state of matter with definite shape and no volume
state of matter with neither shape or volume
Define "liquid"
state of matter?
state of matter with nothing
state of matter with density, no shape
state of matter with definite volume, no shape
Define "gas"
(a)
Define "plasma"
(a)
Define "vapor"
(a)
Define "physical properties"
(a)
Define "intensive"
(a)
Define "extensive"
physical property that depends on the weight of matter present
physical property that depends on the amount of matter present
physical property that depends on the mass of the matter present
Chemical properties....
- can be observed without changing the chemical formula of the original substance
- cannot be observed without changing the chemical formula of the original substance
- can be observed measuring the chemical formula of the original substance
Define "physical change"
(a)
Define "chemical change"
(a)
What are indicators of chemical change?
(a)
What is a substance?
(a)
What is an element?
a pure substance that cannot be broken down by an ordinary chemical reaction
a pure substance that can be broken down by an ordinary chemical reaction
What is a compound?
substance that contains an element chemically combined in a ratio
substance that contains 5or more elements chemically combined in a fixed ratio
substance that contains 2 or more elements chemically combined in a fixed ratio
What is a mixture?
physical blend of two or more substances that are chemically combined
physical blend of two or more substances that are not chemically combined
What is a homogeneous mixture?
uniform composition; has two phases
different composition; has one phase
uniform composition; has one phase
What is a heterogeneous mixture?
not uniform in composition, has one phase
not uniform in composition, has more than one phase
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Melting is chnaging a substance from (a) to liquid
Condensation changes a substance from (a) to liquid
Examples of extenxive properties:
(a)
Examples of intenxive properties:
(a)
