(3 multiple choice chemistry questions) will give 1. you measure a tall tree to be 227 meters tall, how many millimeters is this? a. 227 mm b. 0.227 mm c. 227000 mm d. 2270 2. write 266,000 kg in scientific notation. a. 0.266 x 10^5 b. 0.266 x 10^-5 c. 2.66 x 10^5 d. 2.66 x 10^-5 3. write 0.000266 kg in scientific notation. a. 0.266 x 10^4 b. 0.266 x 10^-4 c. 2.66 x 10^-4 d. 2.66 x 10^4
Answers: 2
Chemistry, 22.06.2019 05:30
Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.
Answers: 1
Chemistry, 22.06.2019 12:10
Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?
Answers: 3
(3 multiple choice chemistry questions) will give 1. you measure a tall tree to be 227 meters tall,...
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