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I find it surprising when the textbook says...

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I still do not understand...

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I have learnt that...

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I’ve learnt that we can use drying agents (e.g. concentrated sulfuric acid, calcium oxide and fused calcium chloride) to collect dry gases.

I’ve learnt that some gases can turn from solid to gaseous state directly by sublimation

I’ve learnt that you can obtain pure form of substances using cystalisation.

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I still don’t understand what what moist gas and dry gas (drying agents) is

I still don’t understand how the temperature changes during distillation.

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I’m surprised that there are so many types of separation methods

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I learnt that you can collect gas by upward delivery, downward delivery, gas syringe and water displacement

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I’ve learnt that in a heating or cooling curve there is a point where the temperature would remain the same until all the icosane has melted or solidified.

I’ve learnt that ice can float on water because it has a special structure making it more expanded thus making it less dense than water.

I’ve learnt that diffusion can occur in a vacuum.

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Sharks can smell underwater

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I still domt understand how the fractional distillation with the glass beads work

I still dont understand how

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I've learnt

1. how to collect gases

2. how to dry gases

3. how to obtain a pure substance

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I've learnt

1. Heating curve

2. Cooling curve

3. What happen to particles during expansion and contraction

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I still don’t understand if gravity affects the diffusion rate.

I still don’t understand vapour desposition.

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i have learnt about physical quantities, collection of gases, separation, purity of substances

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1.I have learnt how to separate solid-solid mixtures.

2.I have learnt how to separate solid-liquid mixtures.

3.I have learnt how to separate liquid-liquid mixtures.

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1.I have learnt how are solid, gas and liquids different

2.I have learnt what a heating curve is.

3.I have learnt what a cooling curve is.

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I am surprise that there is no need to stir a tea when sugar is added to it.

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I am surprised that fractional distillation has so many applications .

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I learnt new separation techniques, I learnt how sublimation works, I learn abt drying agents

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In simple distillation, I don’t understand the reason for the positions of the in and out of the condenser. I don’t understand what miscible liquids, homogeneous solutions, heterogeneous mixtures, immiscible. I don’t understand fractional distillation of beads.

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I’m surprised that iodine can change from solid to gaseous state directly

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I learnt why the temperature stays constant when heating and cooling before changing state, I learnt the conditions that affect diffusion and why it affects the rate of diffusion

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I don’t understand vapour deposition, liquefying gases and wat a icosane is

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That the temperature remains constant when heating until it becomes a uniform temperature

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1. I have learnt how drying agents function to collect dry samples.

2. I have learnt about the uses of the pipette and burette.

3. I have learnt what upward delivery and downward delivery is.

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1. I still do not understand why crystallisation occurs.

2. I still do not understand how impurities can change the boiling and melting point of mixtures.

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1. I have learnt that the hotter something is, the more kinetic energy the molecules has.

2. I have learnt that something with a higher mass will diffuse slower.

3. I have learnt that volatile substances are liquids with low boiling points.

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1. I still do not understand what vapour deposition is.

2. I still do not understand why thermal energy is converted to kinetic energy and not other forms of energy.

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1. I found it surprising that gases are delivered and stored as liquids.

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1. I found it surprising that computer chips need to have a certain purity in order to function effectively.

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ways to collect gases, how to dry gases and separating different types of mixtures