A student titrates 60.0 mL of a nitric acid solution to the equivalence point with 42.0 mL of a 0.30 M sodium hydroxide solution. Phenolphthalein is used as an indicator. When the equivalence point is reach the indicator color change remains and the student stops titrating. After titrating to the equivalence point, what is the concentration of the nitric acid solution?

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million