Compounds Flashcards

1
Q

what is the definition of a compound?

A

a compound is a substance containing more than one type of atom, chemically bonded together

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2
Q

how can you form compounds?

A

by heating their elements together

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3
Q

what are the three types of compound?

A
  • metallic (metal)
  • ionic (metal + non-metal)
  • covalent (non-metal)
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4
Q

describe the ammonium chloride tube practical

A
  • two gases, ammonia and hydrogen chloride diffuse from the ends of the sealed tube
  • where they meet, the compound ammonium chloride forms as a white smoke
  • this shows that the hydrogen chloride molecules must be heavier, as they diffused slower
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5
Q

what is the word equation for the ammonium chloride in a tube practical?

A

ammonia + hydrogen chloride -> ammonium chloride

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6
Q

what happens if you heat up the tube, in the ammonium chloride tube practical?

A
  • if you heat up the tube, the white smoke forms faster because the particles move faster and collide more often
  • it still forms in the same place because both gases diffuse faster
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