Please identify reaction

[jacklarry]

From these choices please identify the reaction in the following eauations:
1. synthesis, 2. decomposition, 3. single replacement, 4. double replacement, 5. none of these.

1. MgCO₃+2HCl=MgCl₂+H₂CO₃
2. CH₄+2O₂=CO₂+H₂O
3. 2PbO₂=2pb+O₂
4.Ca₂H₂O=Ca(OH)₂+H₂
5. Zn+S+ZnS
6. BaCl₂+Na₂SO₄=BaSO₄+2NaCl
7. 2Al+fe2O₃=Al₂O₃+Fe
8. Cl₂H₂₂Oll=12C+H₂O
9. 2LiI+Pb(NO₃)₂=2LiNO₃+PbI₂
10. 2H₂O+O₂=2H₂O₂

Thank you

[Jeff Cochran]

See if this helps you Recognize the reaction types

1. synthesis, A + B --> AB,
from simple to complex, 2 elements form a compound, or smaller compounds form a larger compound

2. decomposition, AB --> A + B
from complex to simple, a compound to 2 elements, or smaller compounds

3. single replacement, A + BX --> B + AX
a element replaces a less active ion (activity series) in a compound
producing the less active element and a new compound.
also, the "higher" halogen replaces the "lower" halogen in the compound
producing the lower halogen element

4. double replacement, AX + BY --> AY + BX, "double-date swap"

5. none of these. Leaves combustion, rxns with oxygen as a reactant.
like burning methane with oxygen to produce carbon dioxide and water


Try working it yourself ....




spoiler below

1 Syn - 5, 10
2 Decomp - 3, 8,
3 SR - 4, 7,
4 DR - 1, 6, 9