What does the salinity of sea water represent? the volume of salt in the ocean the mass of salt in the ocean the concentration of salt dissolved in the ocean the concentration of all dissolved chemicals in the ocean

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)