Tutor profile: Alison K.
What is the separation of substances in column chromatography based on?
Polarity in relation to the solvent and usually the polar silica
Subject: Basic Chemistry
What is the bond holding hydrogen and oxygen together in water?
What is an exception to the cell theory and why?
Virus, the cell theory is not applicable because they are not considered "living"- only made of a protein coat and nucleic acid that they insert into other living hosts