In the laboratory how could you determine if a solid as an ionic or metallic bond

What is the name of this hydrocarbon?

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate

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.