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Types of reactions and balancing

*Answer the following*

__Mg+__Fe2O3➡️__Fe__MgO

Type of reaction:__

Example:

__NaBr+__H3PO➡️__Na3PO4+__HBR

Type of reaction:__

Answer:
3NaBR+1H3PO4➡️1Na3PO4+3HBr

Type of reaction: Double displacement​