Read the following chemical equation. fe(s) + o2 (g) → fe3+ o2− what most likely happens during this reaction? iron loses three electrons. iron gains three electrons. oxygen loses two electrons. oxygen gains two electrons.

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

What happens when an acid dissolves?

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.