chemistry 2a

what does the mass number tell you?

what does the atomic number tell you?

what is a compound?

what is an isotope?

does the mass number or the atomic number change with isotopes?

give 2 properties of ionic compounds

give 2 properties of simple molecular substances

give 3 examples of giant covalent structures

what is another name for giant covalent structures?

give 2 properties of giant covalent structures?

give to properties of metallic structures and say why

name the 4 types of structure you need to know

what are fullerenes?

what is a thermosoftening polymer?

what is a thermosetting polymer?

give the conditions to make LD polyethene

give the conditions to make HD polyethene

what is one mole of a substance equal to?

give the equation for the number of moles

how does gas chromatography work?

what does the molecular ion peak on a mass spectrometer show?