Given the equilibrium 2 a (g) + b (g) < ===> c (g) + 3 d (g)
and the concentrations [a] = 3.0 m, [b] = 0.750 m, [c] = 0.25 m
[d] = 2.0 m, calculate the value for the equilibrium constant.

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

Ab c or d ? i’m not sure what the answer is