Determine if the following statements are true or false. 1. If there are 3 molecules as reactants, then there must be 3 molecules produced.

2. If you start with 10 atoms of sulfur in a chemical reaction, then you should have 10 atoms of S at the end of a reaction.

3. If a reaction starts with 10 atoms of H, 20 atoms of C, and 10 atoms of O, then when complete one molecule should have a total of 40 atoms in it.

If the same amount of cacl2 is added to equal volumes of water and maple syrup, which will have the higher temperature?

Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians?

Hjulstrom's diagram plots two curves representing (1) the minimum stream velocity required to erode sediments of varying sizes from the stream bed, and (2) the minimum velocity required to continue to transport sediments of varying sizes. this is a modified version of the diagram, showing only the transport segment. stream competence refers to the heaviest particles a stream can carry. according to hjulstrom's diagram stream competence depends on a) particle size. b) stream velocity. c) stream deposition. d) stream channel shape.