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chem

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Ca(s) + 2 H2O(l) Ca(OH)2(aq) + H2(g)

acid-base
double-displacement
gas evolution
oxidation-reduction
precipitation
single-displacement
synthesis

whichs one(s) is it??

thanks

  • chem -

    gas evolution

  • chem -

    Also a redox reaction.

  • chem -

    its not also a precipitation os single-displacement??

  • chem -

    or acid- base? because i did gas evolution
    oxidation-reduction
    precipitation
    single-displacement

    but got it wrong so I am thinking either one of those has to be taken out and/or acid-base added

  • chem -

    Depending upon how much Ca reacted, it could be pptn since Ca(OH)2 is not all that soluble.
    And it can be single replacement. You are replacing H with Ca.

  • chem -

    could it also be an acid-base?

  • chem -

    I got it:) it was just not a precipitate:)

    Thankyou sooooo much:)

  • chem -

    If you use the right definition, yes it can be an acid/base reaction.

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