Chemistry, 27.02.2020 02:30 jahmarteharrell
Copper has density of 8.96g/cm^3. A sample of impure copper is found to have a density of 7.20/cm^3. There are two possible impurities aluminum and or lead. Given that Aluminum has a density of 2.70g/cm^3 and lead has a density of 11.34g/cm^3, explain which is the most possible impurity in the sample
Answers: 2
Chemistry, 22.06.2019 04:00
Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.
Answers: 3
Chemistry, 22.06.2019 16:10
Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.
Answers: 1
Chemistry, 22.06.2019 17:30
What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.
Answers: 1
Chemistry, 22.06.2019 20:30
What is a difference between a mixture of elements and a mixture of compounds
Answers: 1
Copper has density of 8.96g/cm^3. A sample of impure copper is found to have a density of 7.20/cm^3....
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