What information would you have to know to determine the toughness of a solid?

Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right

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.