Which of the following will result in a chemical change?
a. burning coal in a furnace
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Chemistry, 20.08.2019 08:20 tatayanamarie5909
Which of the following will result in a chemical change?
a. burning coal in a furnace
b. drying wood in a shed
c. melting ice to obtain water
d. evaporating alcohol into vapor
Answers: 2
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Air can be considered a mixture. which statement does not explain why?
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The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.
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Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.
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Why dose heating increase the speed at which a solution dissolved in water
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