Chemistry, 16.07.2019 23:30, bellamparker
Compare the amount of carbon dioxide released in one year from burning coal to power 10, 65-watt incandescent bulbs with the amount released from powering 10, 13-watt compact fluorescent light (cfl) bulbs. assume the bulbs are on four hours per day for 365 days. you will need to determine the kilowatt hours (kwh) used. first, multiply the wattage of the bulbs by the number of light bulbs to determine the total watts used in one hour. then multiply the result by time in hours to obtain the watt hours. next, divide the result by 1000 to obtain kilowatt hours. on average, 2.1 pounds of carbon dioxide are released for every kwh of electricity produced. b boldi italicsu underline bulleted list numbered list subscript superscript
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Chemistry, 22.06.2019 00:50, justabeachbum
If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?
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Chemistry, 22.06.2019 10:50, mi364
A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.
Answers: 3
Chemistry, 22.06.2019 22:30, skinniestoflegends
Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.
Answers: 2
Compare the amount of carbon dioxide released in one year from burning coal to power 10, 65-watt inc...
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