8. This boundary is described as two plates moving past each other ALONG THE EDGES horizontally. These boundaries will get stuck or lock against each other causing earthquakes when they slip and release. *

c, liquids evaporate, creating a gas

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

yes

ya te ayud espera

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.