Answers: 2
Chemistry, 22.06.2019 07:30, bbyniah123
11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg
Answers: 3
Chemistry, 22.06.2019 10:00, Cythina2007
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) โ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) โ co2(g) k=1.363ร10^69 b. 2 h2(g) + o2(g) โ 2 h2o(g) k=1.389ร10^80 c. 2co(g) + o2 (g) โ 2 co2(g) k=1.477ร10^90
Answers: 1
Chemistry, 22.06.2019 18:00, jessicannoh5965
The fact that the total amount of energy in a system remains constant is a(n)
Answers: 1
Identify six substances mentioned in the book that are important in everyday life and are made of ch...
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