The gas flows from higher concentration/pressure to lower concentration/pressure, which is outside the ball.
Yes, because the net ionic is equation will yield BaCO3 as a precipitate because it is insoluble in water
Answer:
∆H or Enthalpy of the reaction
Explanation:
If ∆H is +ve
- Reaction is exothermic
- Example:-Combustion, mixing sodium/potassium in water
If ∆H is -ve
- Reaction is endothermic
- Ex:-Melting of ice