SOMEONE HELP PLEASE There are several models of acid-base chemistry:

Question 1: What is the Bronsted-Lowry definition of a base?

Question 2: What is the Lewis definition of a base?

Question 3: What special condition applies to the Arrhenius model of acids and bases?

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

When balancing a chemical equation:

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.