Other questions in this quiz

2. Why is hard water good for you?

  • It protects the bones and teeth
  • It is healthier than soft water
  • It makes soap easily

3. What temperature and pressure is needed for the Haber process?

  • 450°C and 200 atmospheres pressure
  • 250°C and 100 atmospheres pressure
  • 600°C and 350 atmospheres pressure

4. Transition metals (group 3) are...

  • strong, hard, high melting and boiling points
  • weak, soft, low melting and boiling points

5. When breaking bonds, energy is...

  • absorbed (endorthermic)
  • released (exothermic)


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