Not ! chemistry b semester final 1. particles in a gas are best described as (1 point) • slow-moving, kinetic, hard spheres • small, hard spheres with insignificant volumes 2. how does the atmospheric pressure at altitudes below sea level compare with atmospheric pressure at sea level? (1 point) • the atmospheric pressure below sea level is higher.

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:

When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?

What is the importance of interlocking the fingers and rubbing while washing hands? the palms are the dirtiest parts of the hands. the spaces between the fingers get washed. the backs of the hands get washed. the fingernails are the dirtiest parts of the hands