2n2 h4(g) + 2no2(g) ⇌ 3n2(g) + 4h2o (g)

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

Light waves can move through , but they travel fastest when they move through a(n) .

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility