classify the following compounds as ionic and covalent. CH4 ,CCl4 ,HCl , NaCl ,NH3 ,CaO ,H2O , Br2 ,C2H5OH , CH3OCH2CH3 ,Co ,CH2CH2 ,MgSO4 ,C2H2 , H2SO4, CH3COONa ,CO2 ,H2 , KBr ,O2 ,NaOH.

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

Identify two types of chemical bonding in the source of dietary potassium