En las salinas de Manaure se procesa la mayor cantidad de sal que se consume en Colombia, este proceso se conoce como evaporación, ya que mediante el calor se evapora el agua y solo queda un remante. Si una solución de NaOH (hidróxido de sodio) se hace reaccionar con H3PO4 (ácido fosfórico)y luego la solución resultante es evaporada por secamiento, podríamos decir: A Ocurre una reacción de sustitución.
B Ocurre una reacción de neutralización.
C El producto es una sal y se denomina fosfato fosfórico.
D El producto es una sal y se denomina ácido fosfórico.

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?