Chemistry, 26.02.2020 22:01 emmazhu1106
Which energy resource disturbs the land the most, producing a lot of pollution and requiring large smokestacks to remove much of it?
hydroelectric
coal
fuel cells
natural gas
Answers: 2
Chemistry, 21.06.2019 22:30
Explain why scientists use shared characteristics to make cladograms.
Answers: 1
Chemistry, 22.06.2019 13:50
Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
Answers: 3
Chemistry, 23.06.2019 00:00
The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
Answers: 1
Chemistry, 23.06.2019 04:20
The reaction below shows a system in equilibrium. how would a decrease in temperature affect this reaction? a. the rate of formation of the gases would increase. b. the equilibrium of the reaction would shift to the left. c. the equilibrium would shift to cause the gases to sublime into solids. d. the chemicals on the left would quickly form the chemical on the right.
Answers: 1
Which energy resource disturbs the land the most, producing a lot of pollution and requiring large s...
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