A sodium atom has 11 electrons and a sulphur atom has 16 electrons. Use the electronic structure of sodium and sulphur yo deduce the ratio of sodium ions to sulphur ions in sodium sulfide

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

Matches the chemical name of each oxide of phosphorus to its chemical formula

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