Determine the mass in grams of 5.11 × 10²¹ atoms of copper. (The mass of one mole of copper is 63.55 g.)

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:

i think that the answer is c