Suppose 180 ml of 3.52x10^-4 m naoh is mixed with 220 ml of 2.47x10^-4 m mgcl2.

a) find the initial concentrations of oh- (aq) and mg^2+ assuming the volumes are additive

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:

distance, luminosity, brightness, radius, chemical composition, and temperature