Explanation:
Liquids cannot change volume but gases can because they have a fixed shape like solids.
Liquids have strong intermolecular forces binding their molecules together resulting is fixed ordering.
- Gases are randomized with their molecules haphazardly arranged.
- This allows them to expand spontaneously on their own.
- Molecules of liquids are more tightly packed compared to gases.
- In a liquid, the molecules have a less random pattern of motion and can only slide past one another.
- In a gas, the molecules are in continuous random, straight line motion.
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Answer:
By adding heat energy
It changed to gas
Explanation:
A substance whose molecules are moving around each other is a liquid. They are held in shape by very weak intermolecular forces.
For solids, there is no movement because the molecules are held up in a fixed lattice.
Gases molecules moves randomly and independently of one another.
- When a liquid is heated and it gains heat energy, it changes phase.
- A phase change to gas can be predicted.
- This is because there is an increase in the speed of the substances.
Answer:
more reliable. The more results the better results you get.
Explanation:
Answer:
3.02x10²⁴
Explanation:
To solve this problem we need to use <em>Avogadro's number</em>: It is the number of units (usually atoms or molecules, in this case it's trucks) contained in one mol: 6.023x10²³.
We <u>multiply the given number of moles times Avogadro's number</u>:
5 * 6.023x10²³ = 3.02x10²⁴
So five moles of trucks would be 3.02x10²⁴ trucks.