The diagram above shows three models of carbon. Which statement is true about these models? (DOK 2)
A. Carbon-13 and Carbon-14 are isotopes, but Carbon-12 is not an isotope.
B. The Carbon-12 model is an anion, but Carbon-13 and Carbon-14 models are neutral.
OC. All three models are isotopes, but the Carbon-12 model is a cation.
D. All three models show neutral atoms that are all isotopes of carbon.

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: