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Pre-AP Chemistry Exam 1
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Pre-AP Chemistry Exam 1
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Pre-AP Chemistry Exam 1Chemistry - correct answer-the study of matter and the transformations it can undergo
Chemical - correct answer-any substance that takes part in, or occurs as a result of, a
chemical reaction. all matter is considered a chemical
Matter - correct answer-anything that occupy's space
Pure Science - correct answer-the search for knowledge; facts. driven by curiosity
Applied Science - correct answer-using knowledge in a practical way. "technology";used to
improve lives
Causation - correct answer-a causal relationship between two things or events exists if one
occurs because of the other.
Correlation - correct answer-a relationship between two or more things which change
(variables)
Significant figures-+,-,*,\ - correct answer-+,-= based on amount of sig figs right of decimal
(least)
*,\= based on amount of sig figs in number (least)
Significant Figures- rules - correct answer-1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are
ALWAYS significant.
2) ALL zeroes between non-zero numbers are ALWAYS significant.
3) ALL zeroes which are SIMULTANEOUSLY to the right of the decimal point AND at the end
of the number are ALWAYS significant.
4) ALL zeroes which are to the left of a written decimal point and are in a number >= 10 are
ALWAYS significant.
Observation - correct answer-process of gathering data
Inference - correct answer-making decisions about the gathered data
Qualitative - correct answer-descriptions; no numbers
Quantitative - correct answer-(measurements) must have numbers and units
Law - correct answer-states what happens
Theory - correct answer-tries to explain why or how something happens
Alchemy - correct answer-~"chemistry" was ruled by alchemy
~alchemists were like magicians
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