¿Cuál es la concentración molar de una solución preparada disolviendo 7 g de KOH (masa molar: 56,11g/mol) en agua y completando en matraz de aforo hasta un volumen de 250 mL?

1 a

2 d

3 a

4 c

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:

explanation: no but i do not usually comment