Chemistry Language

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nollib5252
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#1
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#1
Is there a difference between saying no reaction and precipitate remains?
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Dylann
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#2
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#2
(Original post by ss2525)
Is there a difference between saying no reaction and precipitate remains?
It's probably wise to never write an observation as "no reaction" because it might be chemically untrue. It's much safer to write "no visible change" in all cases where there was no visible change. An example is when a coloured precipitate remains...so I'd recommend saying "[colour] precipitate remains" or "no visible change" (Always state colour with state!)

edit: Also as a direct response to the question, yes there is a difference - no reaction means no chemical bonds were broken or formed and no physical reaction (change in state) occured either. "Precipitate remains" is specific to there being a precipitate before and a precipitate afterwards.
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nollib5252
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#3
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#3
okay thanks, also if some of a precipitate dissolves but not all, would you say 'ppt partially dissolves'
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Dylann
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#4
Report 7 years ago
#4
(Original post by ss2525)
okay thanks, also if some of a precipitate dissolves but not all, would you say 'ppt partially dissolves'
That sounds like a valid observation.

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