SC-429
Particle model of matter
Lower Sec Science · Secondary 1 · Medium · Particle model of matter
Two different liquids, P and Q, are mixed together in a measuring cylinder. The total volume after mixing is less than the sum of their original volumes. Which idea about particles best explains this observation?
- Particles are too large to move past each other
- There are empty spaces between particles of substances
- Particles cannot be compressed at all
- Particles in liquids are fixed in position
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