CHEM 1211K Exam 1
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1
matter
anything that takes up space and has mass
2
Elements
substances that can't be broken down into something smaller
3
compound
combo of elements in set, definite proportions
4
mixture
mix of atoms/molecues in variable amounts
5
what are the two different types of mixtures?
homo and hetero
6
properties
characteristics
7
What are the four properties?
physical, chemical, extensive, and intensive
8
extensive properties
depends on the quantity of sample (mass)
9
intensive properties
remain unchanged regardless of sample size (boiling point)
10
hypothesis
prediction/explanation of observations that can be supported or refuted by further observation
11
experiments
procedures designed to create observatinos to support or refute a hypothesis
12
scientific theory
model that attempts to explain what and why nature does
13
scientific law
explains the is and summarizes past observations and predict future ones
14
ions
atoms with a charge
15
what is another name for a covalent compound?
molecular
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