Proporties of Water

what is cohesion

water sticking to itself (hydrogen bonds)

what is adhesion

water sticking to other polar molecules/ substances (hydrogen bonds)

what does cohesion and adhesion cause

high surface tension!! this allows it to cline up the xylem (capillary action)

what is surface tension ?

its the resistance of a liquids surface being stretched or broken.

why does high surface tension happen?

because all the water molecules r super duper attracted to each other (hydrogen bonds)

what is high specific heat?

waters high energy requirement for water molecules to seperate during phase changes

why does it take so much energy to heat/cool water?

the amount of hydrogen bonds

what helps stabilize temperatures in organisms and ecosystems?

waters high specific heat

what allows evaporative cooling?

high heat of vaporization

what happens to the hydrogen bonds when frozen?

they hold water molecules far apart in an open structure

density of h2o when freezing

water becomes less dense when frozen

what is the floating layer of ice above lakes and ponds called?

insulating layer

what is sovalent

a substance that dissolves other substances

what does water dissolve?

polar or charged substances (hydrophilic)

what is pH

measurement of how acidic a solution is based on the concentration hydrogen ion

pH of water -neutral solution- (equal H+ and OH-)

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