A mixture of two dye molecules, blue and red, was tested by TLC analysis, where the blue dye is more polar than the red. The spotted plate was supposed to be eluted with a mixture of 30% hexane and 70% acetone. However, one student mistakenly used a 70% hexane and 30% acetone solvent mixture instead. The expected change in the Rf value(s) for the two molecules would be: (Select all that apply)

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?