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22 Cards in this Set
- Front
- Back
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Solute definition
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A substance that can dissolve
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Solvent definition
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A liquid which dissolves substances
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Define solution
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A solute dissolves in a solvent
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Define saturated solution
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When no more solute can dissolve at a particular temperature
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Define solubility
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Amount of solute that can dissolve in fixed volume of solvent at a particular temperature
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3 factors that affect solubility
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1. Temperature
2. Surface Area 3. Stirring |
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Process of water cycle in the right order
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1. Evaporation & Transpiration
2. Condensation 3. Clouds 4. Rain/Precipitation 5. Run off 6. River |
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Process of water purification in the right order
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1. Filtration
2. Sedimentation 3. Coagulation 4. Chlorination & Fluoridation |
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Purpose of adding Fluoride
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To make our teeth healthy and stronger
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Purpose of adding Chlorine
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To kill bacteria and microorganisms
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Purpose of adding Alum
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To further coagulate soil particles
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Purpose of adding Lime
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To make the water less acidic
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4 ways to conserve water
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1. Use bucket to wash car
2. Turn off tap after use 3. Collect rainwater for washing cars and watering plants 4. Use water from washing vegetables and fruits for watering plants |
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Produced when hydrogen burns in air
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Water
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Test for hydrogen
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Burning splint will be extinguish with a 'pop' sound
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Process for breaking down water
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Electrolysis
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Equation for electrolysis
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water -> hydrogen + oxygen
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2 uses and properties of hydrogen
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1. Weather balloon - It's very light
2. Fuel - It's liquid gas |
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In electrolysis, oxygen gas produced at?
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Positive electrode
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In electrolysis, hydrogen gas produced at?
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Negative electrode
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Formula for density
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Mass/Volume
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4 uses of water
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1. Cooking
2. Showering 3. Washing 4. Drinking |
