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water evaporates from the sea
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plants release water from tiny holes in their leafs
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as th vapour rises it cools and make liquid droplets forming clouds
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when the clouds get heavy they make rain
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some of the water from the rain soak back to the ground
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water that doesent soak gos back to the river
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less dence than a liquid but more then a vapour
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least dence bc the molecules are far away from eachother
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disolve in water while non polar dont
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angle beetwen two hydrogens 开始学习
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why does the water molecule has a bent shape 开始学习
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because the lone pairs of electrons on the oxygen atom push the h atoms away
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开始学习
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a molecule that has two oposite chargees the electron are not shared equally
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开始学习
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mixture where one substancesis spread out evenly through out another substance but the parcicles of the first one cannot be seen by a naked eye
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开始学习
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contains a lot of magnessium and calcium
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开始学习
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when it pasees through all the rocks it picks up ca and mg
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开始学习
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rain water takes mg and ca from the soil
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开始学习
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dry skin spots on the dishes soap less effective
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factors affecting rate of dissolving 开始学习
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temp movement surafce area
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开始学习
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max amount of a substance that can dissolve in a liquid at given temp
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开始学习
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for solids solubility generally increases with temp
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solubility increases with pressure and decreases for with temp
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how to make more concentrared 开始学习
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add more solute evaporate the solvent
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how to make a more diluted 开始学习
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add more solvent or remove some solute
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metalic compounds sewage plastics
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开始学习
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开始学习
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is when too many nutrients make the wather bad to live in
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