For the reaction:CO(g) + 2 H2(g) → CH3OH(g) K = 91.4 at 350 K and K = 2.05 x 10-4 at 298K What is the value of ΔHºrxn? Select one: a. 2.08 x 103 kJ/mol b. 217 kJ/mol c. 49.9 kJ/mol d. 446 kJ/mol e. 3.75 x 10-2 kJ/mol

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?