1 Live in warm, moist environments, including swimming pools and showers.  Can invade your skin through cuts so tiny you can't even see them or through a small separation between your nail and nail bed.
Methane is a hydrocarbon (CH4. Therefore it is COVALENTLY bonded because of the bonds between carbon (non-metal) and hydrogen (non-metal). Ionic compounds only apply to those made of metals and non-metals.ethane is a hydrocarbon (CH4. Therefore it is COVALENTLY bonded because of the bonds between carbon (non-metal) and hydrogen (non-metal). Ionic compounds only apply to those made of metals and non-metals.
Covalent bonds containing atoms whose electronegativities differ by 1.0 Paulings are considered to be polar covalent bonds. Thus, ionic bonds can and do have partial polar covalent character. In bonds between atoms with little or no electronegativity difference, the bond is considered to be covalent but non-polar.