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In physics, what does Avogadros law state?

1. At the same mass and pressure, equal volumes of gases contain the same number of molecules.
2. Volumes of gases containing the same number of molecules have equal pressures.
3. Volumes of gases containing the same number of molecules have equal pressures and masses.
4. At the same temperature and pressure, equal volumes of gases contain the same number of molecules.

Answer

The correct answer is D) At the same temperature and pressure, equal volumes of gases contain the same number of molecules..

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