1: A 1 cm^3 sample was taken and it weighed 900mg

the answer is   c.) 1575 j.

explanation:

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:

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante