T SKIP QUESTION T F T Refer to desert tent drawing in notes – F a tarp is placed at an angle over a hole T in the ground (using sticks/rocks to hold i)a ii)d iii)c iv)b v)e it up). As the sun heats the plastic the i)c ii)a iii)b iv)e v)f water will evaporate and run down the i)e ii)a iii)b iv)d v)f sides of the tarp and into the bucket solvent, solute placed under it. condense filtration oxygen, carbon dioxide There is a stronger attraction between a the particles in the dice, than between e the particles in the dice and the b (coldest one!) particles in the water. So they do not A want to mix/combine. In the sugar, Desalination there is a strong attraction between the Filter – coffee grounds from water sugar and water molecules – so the Sift – rocks and pebbles out of soil sugar particles are pulled apart and mix with the water. 1. The water is heated. 2. At the boiling point it turns to a gas and rises. 3. The Chapter 6 questions gas condenses to a liquid as it cools. 4. F The droplets run down into the beaker F as pure water. F T Because it is the universal solvent – able T to dissolve many types of solutes F T F Hard = more dissolved minerals i)c ii)b iii)a iv)a v)c i) e ii)a iii)d iv)f v)c Soft = fewer dissolved minerals i)b ii)e iii)c iv)f v)a rate of dissolving (or rate of solvation) Solution on the left with more solute particles C Distillation – by evaporation the water A which would leave the cornstarch B behind. OR filtration – the cornstarch D particles would get stuck in the small C holes of the filter paper as water runs A through.
T T F T F T i)a ii)d iii)c iv)b v)e i)c ii)a iii)b iv)e v)f i)e ii)a iii)b iv)d v)f solvent, solute condense filtration oxygen, carbon dioxide a e b (coldest one!) A Desalination Filter – coffee grounds from water Sift – rocks and pebbles out of soil 1. The water is heated. 2. At the boiling point it turns to a gas and rises. 3. The gas condenses to a liquid as it cools. 4. The droplets run down into the beaker as pure water. Because it is the universal solvent – able to dissolve many types of solutes Hard = more dissolved minerals Soft = fewer dissolved minerals Solution on the left with more solute particles Distillation – by evaporation the water which would leave the cornstarch behind. OR filtration – the cornstarch particles would get stuck in the small holes of the filter paper as water runs through. SKIP QUESTION Refer to desert tent drawing in notes – a tarp is placed at an angle over a hole in the ground (using sticks/rocks to hold it up). As the sun heats the plastic the water will evaporate and run down the sides of the tarp and into the bucket placed under it. There is a stronger attraction between the particles in the dice, than between the particles in the dice and the particles in the water. So they do not want to mix/combine. In the sugar, there is a strong attraction between the sugar and water molecules – so the sugar particles are pulled apart and mix with the water. Chapter 6 questions F F F T T F T F i)c ii)b iii)a iv)a v)c i) e ii)a iii)d iv)f v)c i)b ii)e iii)c iv)f v)a rate of dissolving (or rate of solvation) C A B D C A