Alternative Energy is generated in ways that do not deplete natural resources or harm the environment, especially avoiding the use of fossil fuels and nuclear power. true or false

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

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.