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Properties of Water
Test 1 Part 3
Term | Definition |
---|---|
Cohesion | Stick to each other- because of this water can be a solid, liquid or gas at earths temperatures |
Adhesion | Stick to other substances |
Surface Tension | makes water drops swell, and water striders walk |
Capillary Actions | movement of water through small spaces- helps water up/ through soils |
H-bonds | require more energy to change waters temperature |
oceans/large lakes | Areas near _____/______ have more moderate climate (warm winters, cooler summers) |
Solvent | Many substances dissolve in water because it is a polar molecule which allows for Organic molecules to accumulate in cells and toxins can be transported through the environment. |
H+ (Hydrogen) and OH- (Hydroxide) | As a solvent water can dissolve ___ & ___ |
Acid | substance that adds H+ to a solution |
H2SO4-->2H+ + SO4^-2 | Equation for Sulfuric Acid |
HNO3-->H+ + NO3 | Equation for Nitric Acid |
Base | substance that adds OH- to a solution |
NaOH --> Na+ + OH- | Sodium Hydroxide |
Ca(OH)2 --> Ca2++20H | Calcium Hydroxide |
0-14. 7 is neutral | What is the range of pH? What is neutral? |
above 7 | basic or alkaline |
below 7 | acidic |
H+/protons | pH is the measure of _____ concentrations in a solution/ concentration of _____ in water |