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Anestetic [448]
3 years ago
8

The formula equation below represents a _________ reaction. CaO (s) H2O (l) → Ca(OH)2(l)

Chemistry
1 answer:
myrzilka [38]3 years ago
6 0
The first one is a synthesis reaction (A + B --> AB)
Second one is a double displacement (AB + CD --> AD + CB)
Third one is a synthesis
Fourth one is a single displacement (A + BC --> B + AC)
The fifth one is a decomposition (AB --> A + B). This is a reverse of synthesis.
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Please check this for me?
kolbaska11 [484]
The answer is 
<span>2PbS(s) + 3O2(g) = 2PbO(s) + 2SO2(g)

Your answer is not yet balanced because you have 3 oxygen atoms. it should be balanced by multiplying both side by 2 such as the balanced equation I made. To check it, I will explain why your answer is not yet balanced.

check: (from your equation)
</span> 1-Pb-1
 1-S-1
2 -O-3
the difference between the reactant and the product of Oxygen will prove that it is not yet balanced.

If you use 2PbS(s) + 3O2(g) = 2PbO(s) + 2SO2(g), to check it:
2-Pb-2
 2-S-2
6 -O-6
then this is now balance
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Read 2 more answers
A student calculated the standard enthalpy change of formation of ethane C2H6 using a method based on standard enthalpy change o
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