Calculate the volume of water that would be added to 200cm3 of 0.5mol/dm3 HNO3 TO 0.25mol/dm3.

If you want to create an electrical current, which situation would produce a solution capable of this

Match the name of the following compound:   mgso4  · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange