Other questions in this quiz

2. why are vegatable oils important fuels and food?

  • they provide energy
  • they cook foods faster

3. why is there no overall charge on an atom?

  • mass number can be divided by two
  • number of protons is equal to number of electrons
  • number of protons is equal to the number of neutrons

4. the atomic number of an atom is the number of...

  • electrons
  • protons
  • neutrons

5. why is the extraction of copper expensive?

  • takes a lots of time
  • many steps are involved
  • copper is very reactive
  • its a batch process

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