A solution of barium nitrate will react with a solution of sodium sulfate to produce a precipitate of barium sulfate. Ba(NO 3 ) 2 (aq) + Na 2 SO 4 (aq)  BaSO 4 (s) + 2NaNO 3 (aq) What volume of 0.25moldm -3 sodium sulfate solution would be needed to precipitate all of the barium from 12.5cm 3 of 0.15 moldm -3 barium nitrate?

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

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

How far is the region from the equator or control climate