Chemical Reaction help?


by ldixon
Tags: chemical, reaction
ldixon
ldixon is offline
#1
Sep27-06, 04:13 PM
P: 17
We lit a piece of Mg so the formula is:
2Mg(s) + O2(g) HEAT-- 2MgO(s)

We then dissolved this in water so it would then be:
MgO(s) + H2O(l) -- Mg(OH)2(l)

Next we blew into the solution which made it:
CO2(g) + H2O(l) -- H2CO3(l)

Is this all correct? Should I have (Aq) after the H2CO3?
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GCT
GCT is offline
#2
Sep28-06, 11:38 AM
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P: 1,769
Look up the solubility of Mg(OH)2, if it's completely soluble then it may be more appropriate to subscript an "(aq)" term after it. The H2CO3 should be designated with the aqueous symbol.


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