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Sagot :
Answer:
Below!
Explanation:
27) Mg + HCl = MgCl2 + H2
This would be a single replacement/displacement
Balanced equation : Mg + 2HCl = MgCl2 + H2
28) KBr + Cl2 = KCl + Br2
This would be a single replacement/displacement
Balanced equation : 2KBr + Cl2 = 2KCl + Br2
29) FeS + HCl = FeCl2 + H2S
This would be a double replacement/displacement
Balanced equation : FeS + 2HCl = FeCl2 + H2S
30) KI + Pb(NO3)2 = PbI2 + KNO3
This would be a double replacement/displacement
Balanced equation : 2KI + Pb(NO3)2 = PbI2 + 2KNO3
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Here is how to determine type of reaction
Synthesis : A + B = AB
Decomposition : AB = A + B
Single replacement : AB + C = AC + B
Double replacement : AB + CD = AC + BD
^A,B,C, and D represent elements
If you still need help please ask! :)
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