sodium hydrogen carbonate is soluble in water
- acts as a carbonate with acids
water droplets can only form in products of reaction during gentle heating → - as there is a cooler surface for the droplets to condense on.
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if not the water vapour will escape into the atmosphere
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amount refers specifically to mol. if you see amount, then always compare moles
basicity allows you to compare volume ratio when 2 different acids are used
organic Chemistry to prove that a bunch of compounds are in homologous series there are 2 factors to include in answer:
- can be represented by same general formula (state it then)
- all have same functional group (state it then) Hydrocarbons Main Note
first 4 alkenes and alkanes:
- cannot say add aq bromine
- say: bubble sample into aqueous bromine
- this is because the first 4 alkenes and alkanes are gaseous states.
electrolysis
- when there are multiple ions in electrolyte
- after concentration of 1 decreases in electrolyte then it will be discharged. no need to finish 1 ion before other,. just compare conc.
- thus the electrolyte will be contaminated with bromine