Potions and Poisons B

Test your knowledge of various Science Olympiad events.
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vehicleguy
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Re: Potions and Poisons B

Postby vehicleguy » March 28th, 2018, 5:08 am

If I had a nickel for every time this thread died...

What is the difference between anions and cations?
Explain how to separate the components of a salt water and sand mixture.
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Re: Potions and Poisons B

Postby NeilMehta » March 28th, 2018, 7:55 am

If I had a nickel for every time this thread died...
You'd have... uh... thirty cents?
What is the difference between anions and cations?
Explain how to separate the components of a salt water and sand mixture.
Anion = negative ion and cation = positive ion
steps:
1. mix to dissolve the salt into the water
2. strain the mixture through filter paper to separate the sand from the salt and water
3. heat the saltwater to evaporate out the water
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Re: Potions and Poisons B

Postby vehicleguy » March 28th, 2018, 12:48 pm

Correct, Your turn!
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Re: Potions and Poisons B

Postby vehicleguy » March 31st, 2018, 7:38 pm

I minus well just post a few more questions.

1. What is the difference between intermolecular forces and intramolecular forces?
2. Is hydrogen bonding intermolecular or intramolecular?
3. What is atomic radius and how is it shown in the periodic table? (Kind of vague, I can explain further if needed)
4. What is London Dispersion forces and how do they compare to other chemical bonds? (basically, is it stronger or weaker than other bonds)
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Re: Potions and Poisons B

Postby Things2do » June 14th, 2018, 3:19 pm

[spoiler]1. Intermolecular forces are those between molecules, and intramolecular forces are those within a molecule.
2. Hydrogen bonding is intramolecular.
3. Atomic radius is the radius of a atom. [size=50]{I can elaborate if I need to.}[/size] Atomic radius increases to the left and to the bottom. [size=25]{Is that what you wanted?}[/size]
4. London Dispersion forces are generally weaker than other chemical bonds.[/spoiler]
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