Other questions in this quiz

2. What chemical is this? - Rb

  • Radium
  • Rubidium
  • Rubium
  • Radon

3. what is this chemical? - K

  • Phosphorus
  • Potassium
  • Kaffir
  • Kerogen

4. Oxygen

  • O
  • o
  • O2
  • o2

5. Boron

  • Bo
  • B
  • b
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