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definitions for physical and chemical change

-at least six examples for each type of change
-methods scientists use to determine if a change was physical or chemical
-lists of observable changes that suggest a chemical or physical change has occurred

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

Word equation for k(s) +h2o(l) yield koh (aq) + h2

How does a large body of water, such as the ocean, influence climate?