WILL GIVE BRANLIEST WILL FOREVER BE GREATFUL EASY BUT I WAS TO LAZY TO LEARN 13. How much of 0.05M HCl solution can be made by diluting 250 mL of 10M HCl?

16. What are the oxidation numbers for each element is the compound: PbO2

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:

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.