3. How would you classify the following? (time, mass, temperature, distance)
a. How long a chemistry student studies for a test
b. The energy released by a hot pack
C. How heavy your backpack feels
d. The length of your kitchen table

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.

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.