Question 8 (1 point)
which of the following has been a major contributor in unbalancing the ca...
Question 8 (1 point)
which of the following has been a major contributor in unbalancing the carbon cycle, causing more carbon dioxide to be released into the air
than can be processed by natural means?
са
decomposition
animal respiration
photosynthesis
combustion of fossil fuels
Answers: 3
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Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table
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‘which reaction would most likely require the use of an inert electrode?
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Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
Answers: 1
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Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.
Answers: 1
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