Asked by hannah

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
Answered by scientist
gas evolution
Answered by DrBob222
Also a redox reaction.
Answered by hannah
its not also a precipitation os single-displacement??
Answered by hannah
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
Answered by DrBob222
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.
Answered by hannah
could it also be an acid-base?
Answered by hannah
I got it:) it was just not a precipitate:)

Thankyou sooooo much:)
Answered by DrBob222
If you use the right definition, yes it can be an acid/base reaction.
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