Calculate k for the reaction co2(g) ⇄ c(s) + o2(g) given the following information 2 co2(g) + 2 h2o(l) ⇄ ch3cooh(l) + 2 o2(g) k1 = 5. 40 × 10-16 2 h2(g) + o2(g) ⇄ 2 h2o(l) k2 = 1. 06 × 1010 ch3cooh(l) ⇄ 2 c(s) + 2 h2(g) + o2(g) k3 = 2. 68 × 10-9

Heights of men on a baseball team have a bell-shaped distribution with a mean of 177 cm and a standard deviation of 6 cm. using the empirical rule, what is the approximate percentage of the men between the following values? a. 159 cm and 195 cm b. 165 cm and 189 cm a. 89% of the men are between 159 cm and 195 cm. (round to one decimal place as needed.) b. 89% of the men are between 165 cm and 189 cm. (round to one decimal place as needed.)

Summarize the work of famous environmental scientists of the past.

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.