Dont understand the answer in simple terms.
suppose a bag of ice (450g) at 0.0°c sat on a counter and began to melt to liquid water. how much energy must be absorbed by the ice if 2/3 of it melted

1. list three scientific reasons cockroaches may fly.

What is a metal replacement reaction

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.