1) List the reactants: sodium bicarbonate (NaHCO₃) and citric acid (H₃C₆H₅O₇).
Reactants undergo change during a chemical reaction.
2) List the products: water (H₂O), carbon dioxide (CO₂) and sodium citrate (Na₃C₆H₅O₇).
Products are the substances formed from chemical reactions.
3) The balanced chemical equation:
3NaHCO₃ + H₃C₆H₅O₇ → 3H₂O + 3CO₂ + Na₃C₆H₅O₇.
The answer to this question is photosynthesis.
The question is incomplete. The complete question is:
The partial pressure of 
in your lungs varies from 25 mm Hg to 40 mm Hg. What mass of can dissolve in 1.0 L of water at 25 degree Celsius if the partial pressure of is 40 mm Hg.
Answer: 
Explanation:
Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.
To calculate the molar solubility, we use the equation given by Henry's law, which is:
where,
= Henry's constant = 
= partial pressure = 39 mm Hg = 0.051 atm (760mmHg=1atm)
Putting values in above equation, we get:
Hence, of can dissolve in 1.0 L of water at 25 °C if the partial pressure of is 39 mm Hg
