Which of the following vitamins acts as a transcription regulator? A / 9-cis Retinoic acid
B / Biotin
C / α-Tocopherol
D / Ascorbic acid
E / Folic acid

Which characteristic of water it form droplets? a. low specific heat b. nonpolar structure c. high surface tension d. ability to dissolve substances

Summarize possible ways in which phases of matter could combine to form a solution.

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?