State the balanced chemical equation for photosynthesis: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.

🌱 Photosynthesis is the process by which green plants, algae and some bacteria turn light energy into chemical energy. Think of it as a factory that uses sunlight to build food.

🔬 In simple terms, plants take in carbon dioxide (CO₂) from the air and water (H₂O) from the soil. Using light energy, they produce glucose (C₆H₁₂O₆) – a sugar that fuels growth – and release oxygen (O₂) back into the atmosphere.

$$6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$$

⚠️ Remember: the numbers in front of each molecule (coefficients) ensure that atoms are balanced on both sides.

• ☑️ The balanced equation must have the same number of each type of atom on both sides.
• ☑️ Light energy is the driving force; it is captured by chlorophyll.
• ☑️ Oxygen is a by‑product that plants release into the atmosphere.
• ☑️ Glucose is the main product used for growth and energy storage.

📝 When writing the balanced equation:

• Write the coefficients in front of each molecule.
• Check that the total number of C, H, O atoms match on both sides.
• Use the correct chemical symbols and subscripts.

📝 For multiple‑choice questions: Look for the option that shows the correct stoichiometry (6:6:1:6).

📝 Remember the role of light: It’s not just a reactant; it’s the energy source that drives the reaction.

Imagine a factory that uses sunlight as its power source. The factory takes in raw materials (CO₂ and H₂O) and, with the help of a skilled worker (chlorophyll), turns them into a finished product (glucose). The factory also produces a useful by‑product (O₂) that is released into the environment.

🌞 In a sunny meadow, each plant is like a tiny factory. Over the course of a day, the combined activity of thousands of plants can produce enough oxygen to support the breathing needs of many animals, including us!