Aquecendo-se 100 g de calcário, este se decompõe em 56 g de cal viva e 44 g de gás carbônico, um estudante de química afirmou que no aquecimento de 200 g de calcário, haverá formação de 112 g de cal viva e 88 g de gás carbônico A afirmativa desse estudante está baseada na lei de qual cientista?
(A)Lavoisie.
(B)Dalton.
(C)Richter.
(D)Gay-Lussac.
(E)Proust.​

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction

In one or two grammatically correct sentences, write a definition for the term molecule geometry