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5 Written questions

5 Matching questions

  1. Lipid
  2. Base
  3. Replacement reaction
  4. Chemical Reaction
  5. Reactant
  1. a Substance that's present before a chemical reaction starts.
  2. b Compound formed put atoms in different order.
  3. c Organic compound that contains many carbon-hydrogen bonds but few carbon-oxygen bonds.
  4. d pH value is greater than 7, tastes bitter, turns litmus paper blue, and may be slippery.
  5. e Process in which a substance is transformed into a new substance.

5 Multiple choice questions

  1. Change in color, formation of gas, heat.
  2. A synthetic organic compound.
  3. Needs constant energy to continue, usually a decrease in temperature.
  4. Tastes sour and turns blue litmus paper pink, pH is less than 7.
  5. Silicon, boron and arsenic. Have properties similar to metals and nonmetals.

5 True/False questions

  1. NeutralizationAlpha particles, beta particles, and gamma rays.


  2. Radioactive tracersUsed to detect cancer tumors.


  3. Nuclear FissionSplitting nucleus into smaller pieces.


  4. Organic compoundsSubstance made from carbon.


  5. Physical changeForce that holds two atoms together.


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