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because thats just it. You have to know wen metals like sodium, potassium and calcium react with cold water a hydroxide plus hydrogen gas is formed. Magnesium and metals down cant react with cold water but instead steam to give an oxide and hydrogen
g-->L was exothermic
Thanks , what about for how acid rain is formed? What did you right ? Also for chlorobutane what was the isomers last questions ? ???!
Chromatography and checking the melting point are both acceptable.
for the acid rain I wrote how sulphurdioxide is mixed with rain water in the atmosphere and for the Isomers I made one 1cholrobutane and the other 2cholrobutane
Exactly
Thanks
the one where you had to draw the structural formualae?
Yes !
Please explain this answer.. super confused!
it's name is cholesterol .. similar to alkanol "the ol" at the end .. the functional group of an alkanol is the hydroxide so the answer is B
Not being mean or so…But the reason behind the increase in pH is that the alkali was in excess…There was questio asking wat would neutralize HCl there was water and ammonia,the answer was ammonia…So adding water and changing the dilution and concentration can't move a reagent from an acidic to neutral state since you r adding H ionsthinking about this logically .. we have water at the end therefore the solution becomes less acidic .. which means the pH increasesthe oxidation state of chromium stays 6+ ... as in the ionic eqn : 2CrO4 ^-2 + 2H+ ----> Cr2O7^2- + H2O .. hope u got it
i have bad logicNot being mean or so…But the reason behind the increase in pH is that the alkali was in excess…There was questio asking wat would neutralize HCl there was water and ammonia,the answer was ammonia…So adding water and changing the dilution and concentration can't move a reagent from an acidic to neutral state since you r adding H ions
... thx for clarifying (at least if something similar came ill know how to answer right)
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