#4.) provide an example of each of the three rock types; sedimentary, metamorphic, and igneous.

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

What are the coefficients that will balance the skeleton equation below? n2 + h2 → nh3