3. Divers found two substances at the bottom of the ocean. At room
temperature, both substances are liquid. Scientists then transferred the
same amount of energy out of both substances. When a scientist checked
again, Substance 1 had changed phase, but Substance 2 had not. How are
Substances 1 and 2 different? Substance 1 has a...

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

idk what the question is about

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.