Chm 1045 unit 1 Study guides, Class notes & Summaries

___ are forms of matter - Substances ____ _____ provides information about percentages of different isotopes of each element - Mass spectrometer ____ + ____ are polar covalent molecules that dissociate into ions when introduced to water - Acids, bases _____ charge = # of protons > # electrons - positive _____ in an experiment are all the factors that the experimenter attempts to keep the same - Constant ______ charge = # protons < # electrons - negative "-ate" ending means - mor...

Chemistry is... Ans:the study of matter Matter is... Ans:anything that takes up space and has mass Physical properties = Ans:are those which can be observed without changing the substance into something else Chemical properties = Ans:are those which are observed by changing one substance into another Hypothesis : Ans:an educated guess about the relationship between independent and dependent variables Independent variable : Ans:is a factor that's intentionally varied by the experiment...

Chemistry is... - Answer the study of matter Matter is... - Answer anything that takes up space and has mass Physical properties = - Answer are those which can be observed without changing the substance into something else Chemical properties = - Answer are those which are observed by changing one substance into another Hypothesis : - Answer an educated guess about the relationship between independent and dependent variables Independent variable : - Answer is a factor that's intentional...