What groups do the following elements belong to? * 1A 2A 3A 4A 5A 6A 7A 8A Antimony Br K

In an oxidation-reduction reaction, oxidation is what happens when a reactant

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer