Chemistry, 02.10.2020 18:01 andrewblack033
Please help me with this ASAP! Due today! You find a 3100-mg copper penny (circa 1976) in the snow. How much heat is absorbed by the penny as it warms from the temperature of the snow, which is -8.0 degrees Celsius, to the temperature of your body, 37 degrees Celsius? Assume the penny is pure copper. Specific heat of pure copper is 0.385 J/gC
Answers: 1
Chemistry, 21.06.2019 23:10
Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.
Answers: 1
Chemistry, 22.06.2019 10:30
Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?
Answers: 3
Chemistry, 22.06.2019 18:50
At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver
Answers: 1
Please help me with this ASAP! Due today! You find a 3100-mg copper penny (circa 1976) in the snow....
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