Chemistry, 13.10.2020 01:01 krystinayagel013
Explain how energy can be absorbed in a chemical reaction
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Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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Describe at least two advantages and two disadvantages of using hydropower as a source of energy.
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What is the enthalpy of combustion (per mole) of c4h10 (g)? –2,657.5 kj/mol –5315.0 kj/mol –509.7 kj/mol –254.8 kj/mol
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Explain how energy can be absorbed in a chemical reaction...
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