Question

1)Fill in the blanks. In a liquid, particles are _____arranged. They move about in ____ directions and slide over one another. Can I say "irregularly" & "any" as the answers? I know "random directions" is better, but can we accept "any directions"?

2) When water at 30ËšC is heated,

Water(30ËšC)-->Water(100ËšC)-->Water Vapour(100ËšC)

How do you explain Water(100ËšC)-->Water Vapour(100ËšC)?

Answer 1

random is better. Any indicates they all could move in the same direction.

The water is boiling, changing to steam.

Answer 2

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Answer 3

The particles in a can slide past one another

Answer 4

it is a molecule