density of liquid water = kg / m^3 weight per unit volume +++++++++++++ when is water most dense? at +4 ***************** colder: less dense warmer: more dense ice floats because it is colder, so less dense, than the water it floats on ********* water has a density of 1 at +4 degrees celsius the highest density of water is at +4 Ph below 7 = more acidic Ph above 7 = more alkaline 7.0 = neutral Ph pure water freezes at exactly 0.0 degrees celsius pure water has only hydrogen and oxygen most water has other things like minerals in it ************
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