2MixturesCombination of substances where components retain their own propertiesDo not combine chemicallyAre the following substances or mixtures?watersugar water
3SolutionsMixture where one substance is dissolved in another & will not settle outSolute - substance that dissolvesSolvent - substance it dissolves inConcentrationThe more solute per solvent, the greater the concentration
5Importance of Solutions In organisms, many important substance are dissolved in waterOrganisms must maintain certain concentrations of solutionsEx. pancreas keeps concentration of sugar within a certain range
6Scale to measure the strength of an acid or base Measures from 0-14 pH ScaleScale to measure the strength of an acid or baseMeasures from 0-147 is neutral0-7 is acidic7-14 is basic
7pH scaleEach number on the scale is 10X as concentrated as the number before it
8Quiz Which is more acidic? Which is more basic? pH 2 or pH 6pH 5 or pH 7Which is more basic?pH 8 or pH 9pH 10 or pH 8How much more concentrated is pH 5 than pH 6?How much more concentrated is pH 14 than pH 12?