Oxidation
iron+oxygen happened
        
             
        
        
        
Answer:
The balloon becomes inflated
Explanation:
The equation of the reaction between baking soda (sodium bicarbonate) and vinegar(ethanoic acid) is shown below;
NaHCO3 + HC2CH3O2 ------> NaC2H3O2 + H2O + CO2
The gas (CO2) evolved in the process leads to the inflation of the balloon dropped on the bottle in which the reaction is taking pace.
This observation provides evidence that a gas was really evolved in the reaction.
 
        
             
        
        
        
Answer:
$149 depending where you live.
Explanation:
 
        
             
        
        
        
B upper boundary of the zone of saturation, land beneath this line is saturated with water.