Type the correct answer in the box. express the answer to three significant figures. given: ch4 + 2o2 → co2 + 2h2o, δh = -890 kj/mol how much energy is released when 59.7 grams of methane (ch4) reacts with oxygen? the combustion of 59.7 grams of methane releases 34.5 kilojoules of energy.
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Use examples from the article to explain one positive and one negative effect that chemistry has had on society
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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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The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.
Answers: 1
Type the correct answer in the box. express the answer to three significant figures. given: ch4 + 2...
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