Return of the Chemistry Game before trials! (2 Viewers)

[Dreamerish*~]

my apologies to anyone who is annoyed by the rebirth of this game in a new thread

but seeing as it is just a few weeks before trials, let's play it again.

same rules, i name a chemistry term and explain its meaning, giving as much relevant information as possible. the next person takes the last letter of my chemistry term and create a new chemistry term, repeating what i've done... usw.

(note: make sure it's in the syllabus, and feel free to make corrections.)

catalytic cracking: the process which "cracks" or converts high molecular weight fractions from crude oil are broken into lower molecular weight substances such as propene and ethene in order to increase the output of high-demand products.
E.g: C₁₅H₃₂ --> C₁₀H₂₂ + C₅H₁₀
The catalyst for the reaction is composed of an inorganic compound - zeolite (an aluminosilicate) which provides a large surface area for the reaction to occur. the reaction takes place in an anerobic environment with a temperature of 500 degrees Celsius.

 

[Emma-Jayde]

It's baaaaaack!!!!!

Gravimetric analysis: A type of quantitative analysis which allows you to calculate the exact percentage composition of a particular substance within a mixture of substances.
This method involves determining the exact mass of both the mixture and the particular substance within the mixture.

 

[Dreamerish*~]

YAY! a reply!

styrene: monomer from which polystyrene is made. common name is ethenylbezene. structure of monomer:
CH₂=CH-"benzene ring" (lol sorry about that)

 

[Emma-Jayde]

Electrolyte: An ionic solution that conducts electricity

.....It's the return of the 'e's....NOOOOOOOOOOO.........

 

[Dreamerish*~]

LOL, oh crap.

ethanol: C₂H₅OH. belongs to the homologous group alkanols. can be made by the hydration of ethene:

C₂H_4(g) + H₂O_(l) diluted H₂SO₄ cat. > C₂H₅OH_aq

it can also be made via the process of fermentation of glucose:

C₆H₁₂O_6(aq) yeast > 2C₂H₅OH_aq + 2CO_2(g)

it is a potential alternative fuel source to petrol because it emits less greenhouse gases, and is a renewable resource.

 

[Emma-Jayde]

Le Chatelier's principle: if a stress is applied to a system in equilibrium, the equilibrium shifts in a way that tends to undo the effect of the stress.

 

[Intervene]

*Takes this from csu.edu site*

Eutrophication : The process of eutrophication involves the increase in nutrient content of a body of water resulting in excessive growth of plants, which when they die, causes oxygen depletion during the decay process. The oxygen depletion threatens the survival of fish.

 

[Jumbo Cactuar]

Non-polar solvent : A medium which dissolves solutes by the interaction of dispersion forces only. Non-polar solvents prefer non-polar solutes. Examples include benzene and tetrachloromethane (carbon tetrachloride).

 

[xiao1985]

<b>teraphthalic acid</b> one of the monomer used to manufacture poly ethylene theraphthalate (PET), a common polymer used for soft drink bottles.

 

[Leah.Midd]

Dissolved oxygen: Dissolved oxygen levels indicate the water’s ability to support aquatic life. Oxygen levels increase where there is increased contact between water and air (such as tumbling of water and wave formation). DO can be measured by a thallium oxygen-sensitive probe, or by a Winkler titration.

(Im new at this games, but it looks like a good idea)

 

[Emma-Jayde]

Nucleic Acids 2 different types- deoxyribonucleic (DNA) ans ribonucleic (RNA). Hich mass biopolymers composd of C, H, O, N and P.

 

[Jumbo Cactuar]

Salt : A substance held together by electrostatic interactions of positively and negatively charged ions (ionic bonding). Salts are typically solid at standard state, though liquid salts exist (ex. 1-butyl-3-methylimidazolium tetrafluoroborate). Typically high boiling points and poor strength in compression and tension. Solutions of salts are known as electrolytes. Molten salts and electrolytes conduct electricity.

 

[Emma-Jayde]

titration: method of determining the concentration of a solution by adding a solution of a reactant to a solution of sample until an indicator changes colour.

 

[Jumbo Cactuar]

I can see the letter N is fast going to become a nuisance!

 

[Budz]

Neon - a noble gas also known as the inert gases as they are inert... der..

 

[Dreamerish*~]

Neon - a noble gas also known as the inert gases as they are inert... der..

NeoN??! *slaps buds across the head*

Neutralisation: an exothermic reaction between an acid and a base to produce salt and water.

Eg. HCl_(aq) + NaOH_(aq) --> NaCl_(aq) + H₂O_(l) + heat

EDIT: i just realised that i am such a hypocrite make the word neutralising instead. lol

 

[Budz]

Galvanic - Of an electrical cell that produces a flow of electricity caused by a chemical reaction

 

[Emma-Jayde]

Chromatography: A separation technique using the ability of surfaces to adsorb substances with different strengths

The evil 'n's and the evil 'y's....

 

[Budz]

Yittrium: some radioatice element on the periodic table

 

[Dreamerish*~]

mole: a unit of measument of an element or compound. It measures the amount of substance of a system and is defined as the amount of substance that contains as many elementary entities as there are atoms in exactly 0.012 kilogram of carbon-12.