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CHEM 101 Midterm Ivy Tech Questions And Answers $12.79   Add to cart

Exam (elaborations)

CHEM 101 Midterm Ivy Tech Questions And Answers

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  • Course
  • CHEM 101
  • Institution
  • CHEM 101

oxidation-reduction (redox) reactions ~ a reaction that involves the transfer of electrons between reactants, many involve the reaction of a substance with oxygen oxidation ~ loss of electrons reduction ~ gain of electrons OIL RIG ~ oxidation is loss, reduction is gain redox reactions...

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  • August 8, 2024
  • 31
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CHEM 101
  • CHEM 101
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CHEM 101 Midterm Ivy Tech
Questions And Answers

Chemistry definition


✓~ The science that seeks to understand what matter does by studying what

atoms and molecules do




virtually everything around you is composed of _________


✓~ chemicals




atoms are bound together to form several different types of

______________


✓~ molecules




observations


✓~ involve measuring or observing some aspect of nature




hypotheses

,✓~ tentative interpretations of the observations




laws


✓~ summarize the results of a large number of observations




theories


✓~ are models that explain and give the underlying causes for observations and

laws




scientific method: experimentation


✓~ laws, hypotheses, and theories must be tested and validated by experiments




scientific method


✓~ a way of learning that emphasizes observation and experimentation to

produce knowledge




Law of Conservation of Mass


✓~ in a chemical reaction, matter is neither created nor destroyed

,Who created the law of conservation of mass?


✓~ Lavoisier




scientific theory


✓~ A well-tested explanation for a wide range of observations or experimental

results.




Atomic Theory


✓~ a theory that states that all matter is composed of tiny particles called atoms.




Who created the atomic theory?


✓~ John Dalton




uncertainty is indicated by the last __________ ___________


✓~ reported digit




significant numbers

, ✓~ any number that is not a 0, sandwiched 0s, trailing 0s when there is a

decimal place




not significant numbers


✓~ leading 0s and trailing 0s at the end of a number without a decimal place




Sig Fig Multiplication/Division Rule


✓~ carry the same number of sig figs as the factor with the fewest sig figs




Sig Figs: Adding and Subtracting


✓~ carry the same number of decimal places as the quantity carrying the fewest

decimal places




unit for length


✓~ meter (m)




unit for mass


✓~ kilogram (kg)

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