9. two twin boys are playing outside on a hot, sunny day. one of the twin boys is wearing a black shirt
and the other, a white shirt. the twin in the black shirt feels warmer. explain why.

The tendency of water molecules to stick together is referred to as a) adhesion b) polarity c) cohesion d) transpiration e) evaporation

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o