Which statement about elements is not true

A. Elements are found on the periodic table

B. Elements are made up of w

C. Elements are made up of atoms

D. Elements naturally exist on earth

The correct answer would be 1. precipitation

Ibelieve its because the stove is a cleaner burning fuel

The answer to the question: choose the correct statement.  a) when ethane reacts with fluorine gas the product is less stable.b) addition reactions of unsaturated hydrocarbons and halogens requires a high activation energy.  c)the double covalent bond within unsaturated hydrocarbons requires a lot of energy to break.  d)the double covalent bond within unsaturated hydrocarbons can be broken easily.is: a) when ethane reacts with fluorine gas the product is less stable.