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Chemistry unit 1 Questions and Answers 100% Solved
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Exam of 3 pages for the course Straighterline Chemistry at Straighterline Chemistry (Chemistry unit 1)
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Chemistry unit 1(Inorganic, organic, analytical, biochemistry, or physical) determine the composition of
moon rock - answer Analytical
(Inorganic, organic, analytical, biochemistry, or physical) do research on making a new
medicine to treat high blood pressure - answer Biochemistry
(Inorganic, organic, analytical, biochemistry, or physical) investigate ways to regulate
the rate of gas burning in a car engine - answer Physical
(Inorganic, organic, analytical, biochemistry, or physical) develop a plastic that can be
decomposed by bacteria - answer Organic
(Inorganic, organic, analytical, biochemistry, or physical) improve the method for
extracting iron from iron ore - answer Inorganic
(Pure or applied) develop a shampoo to be used with dry or damaged hair - answer
Applied
(Pure or applied) determining the conditions required for materials to burn - answerPure
(Pure or applied) figuring out the general structure of materials such as cotton and silk -
answerPute
(Pure or applied) designing a large-scale method for producing nylon - answerApplied
(Pure or applied) explaining why water expands when it freezes - answerApplied
Suppose you try several experiments with your car. You try to battery jump, which does
not work. There seems to be enough gas in the car. You wiggle a wire in the engine,
and the car starts on the next try. Explain why these tests help you decide what is
wrong with the car - answerManipulated two different components or your car at
different times
Discuss the statement "no theory is written in stone" - answerTheories can be disproven
Burning gasoline in an engine - answerNot a physical change
Dissolving sugar in water - answerPhysical change
Evaporating sea water to obtain salt - answerPhysical change
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