Strontium cyanide has both covalent and ionic bonds. Outline the Lewis structure for this chemical. Is this molecule polar or non-polar?
An emergency breathing apparatus used in the mines in case of emergencies uses this reaction:
4KO2(2) + 2 CO2 (g) (arrow pointing right)2 K2CO3 (s) + 3 O2(g)
Determine the numbers of grams of KO2 are required to provide the enough oxygen gas for a person to breathe for one hour?