Particles

Question 1

What is a solid

Answer 1

The particles are tightly packed together in an arranged pattern. They have a fixed shape and volume so they can’t easily be compressed because it is very dense and have lots of particles in a small volume. It is hard to diffuse them in solids

Question 2

What is a liquid

Answer 2

The particles are close but can still move. It takes the same of the container, moderate compressibility and can diffuse well. The are always moving and move in all directions

Question 3

What is a gas

Answer 3

There is a low force of attraction and they are very far apart. They move in all directions and expand to fill a container. They are easy to compress as there is free space between the particles. They are not dense and there are not many particles in a large volume

Question 4

What are the changes of state called

Answer 4

Solid to liquid- Melting
Solid to gas- sublimation
Liquid to solid- freezing
Liquid to gas- Boiling
Gas to solid- deposition
Gas to liquid- condensation

Question 5

What is diffusion

Answer 5

When the particles spread out from an area of high concentration to low concentration

Question 6

What is osmosis

Answer 6

The spreading out of water molecules across a selectively permeable membrane from an area of high concentration to low concentration

Question 7

~What is an atom

Answer 7

The smallest part of an element that can exist

Question 8

What is an element

Answer 8

A substance made of one type of atom

Question 9

What is a compound

Answer 9

When 2 or more different elements are chemically bonded. You can not separate them

Question 10

What is a mixture

Answer 10

When 2 or more different elements are mixed but not chemically bonded. You can separate them

Question 11

What is the substance being dissolved called

Answer 11

Solute

Question 12

What is the substance it is dissolving into called

Answer 12

Solvent

Question 13

What is the mixture of a solute and solvent

Answer 13

Solution

Question 14

Explain the process of 2 separating techniques

Answer 14

The solution moved through the filter paper. What moves through it is called the filtrate. What is left behind is the residue. This process is called filtration

A Bunsen burner is under an evaporating dish, which contains a solution. What evaporates is the clean liquid is and what’s left is the solid inside it.

You can separate these because they are mixtures