Problem 13.002 pentane (c5h12) burns completely with a theoretical amount of air, which can be modeled as 21% o2 and 79% n2 on a molar basis. determine the air-fuel ratio on a molar basis, in kmol(air)/kmol(fuel).

answer: they produce more slow than unicellular organisms.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.