during a reaction the entahlpy of formation of an intermediate is 34 kJ/mol. during the reaction 4 moles of intermediate are produced. what is the enthalpy value for this step of the reaction a. -136 kJ B. -34 kJ c. 136 kJ d. 34 kJ

a graduated cylinder.

explanation:

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.