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Chemistry, 21.02.2020 17:31 Lauraemia43
As an alternative to ear tags and lip tattoos, tetracycline (an antibiotic) is used to mark polar bears. The advantages of using tetracycline in this fashion are that it leaves a detectable deposit on the bears’ teeth, it can be administered remotely, and using it doesn’t require that the animal be sedated. If 25 mg/kg is an effective dose, how much tetracycline is needed (in grams) to mark a 880 kg polar bear? Round your answer to two significant figures.
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Chemistry, 22.06.2019 10:00, Cythina2007
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90
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As an alternative to ear tags and lip tattoos, tetracycline (an antibiotic) is used to mark polar be...
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