The “lead” of a pencil is actually made of a substance called graphite which is made of carbon atoms. The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and ...

Water molecules are so attracted to each other that even after the balloon pops, the water molecules stay together keeping the shape of the balloon. In the water molecule, the oxygen and hydrogen ...

It explains the importance of atomic weights in chemistry and illustrates the process using the law of Dong and Petit, which connects specific heat to atomic weight. The experiment involves ...

1). Figure 1 ... A critical lesson here is that a complete understanding of chemical principles was not a prerequisite for the emergence of synthetic chemistry. Rather, synthetic and analytical ...