Compounds called blank react with acid or basic solutions and produce certain colors depending on the solution's ph; blank paper turns blue when placed in a basic solution

Often on a topographic map, every fifth contour line is darkened. what is this line called? a. key b.slope c.benchmark d. index contour

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?