Which of the following statements is true?
A.)The overall chemical reaction is exothermic.
B.)There are two intermediate reactions in this system.
C.)The third intermediate reaction is endothermic.
D.)The longest arrow represents the overall chemical reaction.

Explain what happens at the saturation point when adding salt to water at room temperature.

What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol

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.