c2 elements, compunds and mixtures
- Created by: faiqa1331
- Created on: 21-10-18 13:19
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- c2 elements, compunds and mixtures
- seperating mixtures
- filtration
- seperates a solid from a liquid
- insoluble substance froms residue
- soluble substance goes through filter paper as filtrate
- crystallisation
- produces dry sample of soluble substance
- solution is heated
- solvent evaporates
- simple distillation
- seperates a solvent from a solution
- evaporation > cooling > condensing
- fractional distillation
- seperates a liquid from a mixture of liquids
- evaporation > cooling at different temperatures > condensing
- chromatorgraphy
- stationary phase
- mobile phase
- substance distrubuted between phases
- filtration
- nanoparticles
- 1 nm - 100 nm across
- very large surface area to volume ratio
- carbon allotropes
- diamond
- 4 covalent bonds per carbon atom
- giant covalent lattice
- hard
- no delocalied electrons
- does not conduct electricity
- graphite
- 3 covalent bonds per carbon atom
- layered structure with weak forces betweek layers
- sofft and slippery
- delocalised elctrons
- good conductor of heat
- diamond
- structure and change of state
- metals
- strong
- high melting and boling points
- conducts electricity when solid or liquid
- metallic bonds
- malleable
- ionic compounds
- strong
- high melting and boiling points
- brittle
- conducts electricity when molten or dissolved
- giant covalent structures
- strong
- high melting and boiling points
- doesnt conduct electricity except graphite
- simple molecules
- weak
- low melting and boiling points
- conducts electricity
- metals
- metals and non-metals
- metals
- shiny
- solid at room temperature
- malleable
- forms + ions
- metallic bonding
- non-metals
- dull
- brittle
- insulators
- forms - ions
- covalent bonding
- metals
- bonds
- covalent
- non-metals
- shared electrons
- strong
- brittle
- ionic
- brittle
- non-metal + metal
- brittle
- metallic
- metals
- delocalised electrons
- malleable
- covalent
- seperating mixtures
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