Marti has a sore throat. his doctor suggests gargling with salt water to reduce the pain. he heats water to 300 k and wonders how much salt he should add to avoid excess salt at the bottom of the cup. how much sodium chloride should marti add? did she create an unsaturated, saturated, or supersaturated solution? a. 30g b. 40g c. 50g d. 60g

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:

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.