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5 Written questions

5 Matching questions

  1. subscripts:
  2. solubility rule 3:
  3. In single replacement rxns:
  4. if the yield sign has elec:
  5. single replacement rules:
  1. a are at the right of the equation, they always stay there never change!
  2. b metals replace metals visversa! metals can replace hydrogen.
  3. c this means electricity is used!
  4. d a element can replace any element in a compound if the element in the compound is below it on the electromotive series.
  5. e binary compounds of group 17 other than F with metals are soluble except those of silver, mercury I, and lead

5 Multiple choice questions

  1. matter is neither created nor destroyed!
  2. hydrocarbon + o2= co2 + h2o
  3. ab=a+b
  4. they have to do with the electromotive series. it arranges most reacted to least reacted.
  5. chemical bonds are broken, atoms are rearranged and new chemical bonds are formed.

5 True/False questions

  1. solubility rule 1:all sulfates are soluble except those of barium, strontium, lead, calcium, silver, and mercury I.


  2. k-pb:react with steam to produce a metaloxide + h2 (h2o and h2)


  3. Diatomic elements:they form a 7 on the periodic table: H, N, F,Cl,O,Br,I. all have a 2 at the end


  4. the middle arrow:this means a catalyst is present!


  5. Double replacement:a+bc= b+ac