2alkanes are hydrocarbons that contain what type of bonds

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

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Answer explain why it is not possible to deduce a complete order of reactivity.