Nguyễn Hương Ly
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2025-03-13 20:21:28
Before:
- Prepare an emergency kit with food, water, and medicine.
- Know where to go if you need to leave your home quickly.
During:
- Stay away from flooded areas; it can be dangerous.
- Listen to the radio or TV for updates and instructions from local authorities.
After:
- Be careful when you go back home; things might be damaged.
- Clean your home well to keep healthy, especially if water got inside.
2025-03-12 20:48:14
2P + 5O -> P2O5
P2O5 +3H2O -> 2H3PO4
2H3PO4 + Na -> Na3PO4