woa Flashcards by ro ro

Q

what is the retention factor

A

distance moved by dye

—

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Q

solubility rules

A

lead, silver ide

lead, barium, calcium ate

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Q

in aqueous what goes to the cathode

A

least reactive metal, below H

copper, silver, gold

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Q

in aq what forms at anode

A

no hydroxide ide

hydroxide ate

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Q

eq for hydroxide at anode

A

4OH- -> 02 + 2H2O + 4e-

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Q

acid + base =

A

salt + water

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Q

acid + metal =

A

salt + hydrogen

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Q

acid + carbonate =

A

salt + carbon dioxide + water

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Q

conditions for cracking

A

650C

with silica

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Q

conditions for haber process

A

450C
200atm
iron catalyst

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Q

uses of ammonia

A

fertilisers
nitric acid
nylon

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Q

conditions for sulfuric acid

A

600C

2atm

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Q

stages of sulfuric acid

A

sulfur + air -> sulfur dioxide

sulfur dioxide + oxygen -> sulfur trioxide

sulfur trioxide + sulfuric acid -> oleum

oleum diluted -> sulfuric acid

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Q

where is hydrogen found

A

cracking hydrocarbons

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Q

where is nitrogen found

A

the air - 78% ;)

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Q

what decomposes to form oxygen

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A

hydrogen peroxide

+ magnase dioxide catalyst

Q

ethanol from crude oil conditions

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A

300C
65 atm
phosphoric acid catalyst

Q

ethanol from glucose conditions

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A

35C

yeast catalyst

Q

eq for ethanol from carbs

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A

glucose -> ethanol + Co2

Q

eq for ethanol from carbs

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A

ethene + steam -> ethanol

Q

adv + disadv for ethanol from carbs

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A

renewable
low energy cost
slow
impure
batch process

Q

stages of iron from ore

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A

o2 reacts w coke -> CO2

CO2 reacts w coke -> CO

CO reduces FeO -> Fe

Q

how slag is formed

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A

calcium carbonate decomposes -> calcium oxide

calcium oxide reacts w silicon dioxide -> slag