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Physical Sciences > a mixture of stuff (10) > Flashcards

a mixture of stuff (10) Flashcards

1
Q

crystal lattice

A

ionic substances bonded together into a giant molecule in a regular geometric structure

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2
Q

properties of ionic compounds

A

ions are arranged in a crystal lattice
ionic solids are crystalline at room temperature
the ionic bond is a strong electrostatic attraction they are often hard and have high melting and boiling points
brittle and bonds are broken along planes when the compound is put under pressure
solid crystals do not conduct electricity, but ionic solutions do

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3
Q

properties of metals

A
  • shiny
  • conduct electricity
  • conduct heat
  • high melting and boiling points
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4
Q

liquid and liquid

A

emulsion

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5
Q

solid and liquid

A

suspension

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6
Q

gas and liquid

A

aerosol

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7
Q

gas and solid

A

smoke

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8
Q

molecular substance (structural particles)

A

molecule

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9
Q

covalent network structure (structural particles)

A

atoms

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10
Q

ionic substances (structural particles)

A

positive and negative ions

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11
Q

metal compound (structural particles)

A

positive metal ions and delocalised electrons

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12
Q

molecular substance (bonding of forces between particles)

A

weak intermolecular attraction forces

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13
Q

molecular substances (common properties)

A
  • weak
  • low melting point
  • non-conductors if electricity and heat
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14
Q

molecular substance examples

A

I2; CO2; H2O; CH4

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15
Q

covalent network structure (bonding of forces between particles)

A

covalent bonding

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16
Q

covalent network structure common properties

A
  • very hard
  • high melting point
  • non-conductors if electricity and heat
17
Q

ionic substance examples

A

NaCl; KMnO4; CuSO4

18
Q

ionic substance bonding forces

A

electrostatic forces (ionic compounds)

19
Q

ionic substance common properties

A
  • hard; brittle
  • high melting/boiling points
  • non-conductors if electricity in the solid phase
20
Q

examples of covalent network structure

A

C (diamond and graphite)

SiO2

21
Q

metal compound bonding of forces

A

metallic bonds

22
Q

metal compound common properties

A
  • shiny
  • soft to very hard
  • flexible and malleable
  • conducts heat and electricity
23
Q

examples of metal compound

A

Fe; Mg; Cu; Zn

Physical Sciences (19 decks)

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