CHEM 101 Midterm Ivy Tech questions with answers

CHEM 101 Midterm Ivy Tech questions with \| \| \| \| \| \| \|




answers

Chemistry definition - CORRECT ANSWERS ✔✔The science that
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seeks to understand what matter does by studying what atoms
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and molecules do
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virtually everything around you is composed of _________ -
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CORRECT ANSWERS ✔✔chemicals \| \|




atoms are bound together to form several different types of
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______________ - CORRECT ANSWERS ✔✔molecules \| \| \| \|




observations - CORRECT ANSWERS ✔✔involve measuring or \| \| \| \| \| \| \|


observing some aspect of nature \| \| \| \|




hypotheses - CORRECT ANSWERS ✔✔tentative interpretations of
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the observations
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laws - CORRECT ANSWERS ✔✔summarize the results of a large
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number of observations \| \|




theories - CORRECT ANSWERS ✔✔are models that explain and
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give the underlying causes for observations and laws
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,scientific method: experimentation - CORRECT ANSWERS
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✔✔laws, hypotheses, and theories must be tested and validated
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by experiments
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scientific method - CORRECT ANSWERS ✔✔a way of learning
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that emphasizes observation and experimentation to produce
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knowledge


Law of Conservation of Mass - CORRECT ANSWERS ✔✔in a
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chemical reaction, matter is neither created nor destroyed
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Who created the law of conservation of mass? - CORRECT
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ANSWERS ✔✔Lavoisier \|




scientific theory - CORRECT ANSWERS ✔✔A well-tested
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explanation for a wide range of observations or experimental
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results.


Atomic Theory - CORRECT ANSWERS ✔✔a theory that states that
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all matter is composed of tiny particles called atoms.
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Who created the atomic theory? - CORRECT ANSWERS ✔✔John
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Dalton


uncertainty is indicated by the last __________ ___________ -
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CORRECT ANSWERS ✔✔reported digit \| \| \|

, significant numbers - CORRECT ANSWERS ✔✔any number that is
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not a 0, sandwiched 0s, trailing 0s when there is a decimal place
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not significant numbers - CORRECT ANSWERS ✔✔leading 0s and
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trailing 0s at the end of a number without a decimal place
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Sig Fig Multiplication/Division Rule - CORRECT ANSWERS ✔✔carry
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the same number of sig figs as the factor with the fewest sig figs
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Sig Figs: Adding and Subtracting - CORRECT ANSWERS ✔✔carry
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the same number of decimal places as the quantity carrying the
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fewest decimal places \| \|




unit for length - CORRECT ANSWERS ✔✔meter (m)
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unit for mass - CORRECT ANSWERS ✔✔kilogram (kg)
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unit for time - CORRECT ANSWERS ✔✔seconds (s)
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unit for temperature - CORRECT ANSWERS ✔✔Kelvin (K)
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Tera (T) - CORRECT ANSWERS ✔✔10^12
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Giga (G) - CORRECT ANSWERS ✔✔10^9
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Mega (M) - CORRECT ANSWERS ✔✔10^6
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