9) Name a soluble compound (not just the ion) that could be added to a solution containing Sn^2+ ions that would precipitate the tin out of solution. (Hint: more than 1 answer) PLEASE HELP!! DUE IN 10 MINS

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: