Which statement is true about the following isotopes: Sulfur-34, Sulfur-33 and Sulfur-32? (Choose all that apply) 1. There is an equal amount of each isotope in nature.
2. They have a different number of neutrons.
3. The different isotopes vary in their relative abundance in nature.
4. Sulfur-34 has two more protons than Sulfur-32.

Evaluate this exponential expression,8. (2 + 3)2 – 42

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.