Write the equations of selective corrosion of the alloy Au/Ag in a neutral medium and in a medium of H2PO4 .​

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

Which form of relativism states that people rely on their own standards of right and wrong when making a decision?

Based on its chemical properties, identify the position of each chemical family on the periodic table.