How do the particles act in different states
Solid particles are compact, Organised. all touching and vibrate about fixed positions. Liquids particles are compact , moving, all touching and move around each other. Gases particles are Scattered, Not touching and have freedom in movement
What are the bonds like of the particles in each state of matter
Solid particles have Strong forces of attraction in their bonds. Liquid particles have some force of attraction between the bonds. Gas particles have close to zero attraction between the bonds
What happens to the particles when you heat the different states of matter
Solid particles will vigorously move about the more you heat them which causes the solid to stretch out and take up more room. Liquids particles Move around much more due to the decrease of the Inter molecular forces. Gas particles move around much more due to the increases energy transferred from the heat, this causes the particles to hit the walls of the container much more often and quicker it is in (e.g a room or a bottle) which thus increases the pressure in the container.
What is a chemical change
Chemical change is a change that produces one or more substance. the substance of the new substance and usually very different to the properties of the original substance.
What is a physical change
Physical changes is when a substance changes state or changes into broken pieces. no new substances are made, the original substance just changes form
What can a physical change do that a chemical change can't
A physical change can be reversed but a chemical change can never be reversed.
What can a chemical change do that a physical change can't
A chemical change can produce a new substance but a physical change cannot
What happens during a chemical change
During a chemical change, the bonds between atoms break down and the atoms rearrange (change places).
What happens during a physical change
During a physical change the substance changes state, which means the particle arrangement stays the same but the behaviour changes
What are examples of physical changes
dissolving, condensing, evaporation, freezing/melting ice
What are examples of chemical changes
Digestion, combustion, steel rusting, acid reacting with alkaline to create salt water
What are the subatomic particles
Neutrons, Protons and Electrons
What are the charges of the Subatomic Particles
Neutrons are neutral, protons are positive and electrons are negative
Protons are +1 electrons are -1 and neutrons are 0
What are the relative masses of the Subatomic particles
Protons are 1, electrons are 0.0005 (negligible), neutrons are 1
What makes up the Nucleus
Protons and neutrons
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