Kemitecken

Kemitecken - an exercise made by oriborichori on Spellic.com.
1. Fold the right part of the paper back so that you can't se the answers.
2. Write the correct answer in the space below each question.
3. When done, fold the paper back and compare your answers.
CO₂ Koldioxidmolekyl
CO Koloxidmolekyl
C Kolatom
H₂O Vattenmolekyl
2H₂O Två vattenmolekyler
H₂CO₃ Kolsyramolekyl
O₂ Syremolekyl
O Syreatom
2O₂ Två syremolekyler