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Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Geothermal energy for industrial use is available almost anywhere. a. true b. false