Short Answer 1. Briefly describe two types of substances which can conduct electricity. For each type , also tell how electric current is transmitted through the substances.
Metals conduct electricity by moving electrons throughout the substance.
Electrolyte solutions conduct electricity by moving ions throughout the solution. By comparing the solid's mass before and after heating, the student realized the solid had lost mass. The student had heated a hydrated compound, and released the water of hydration upon heating. Because they often have elemental substances becoming compounds, the Single Replacement reaction type is driven by electron transfer, which is also known as Redox . Precipitation reactions are usually examples of the Double Replacement category of reactions.