How do you know which planet is farther away from the sun by years?

planet w= 1.9 yrs

or

planet x= 11.8 yrs

Ais your answer to this

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

It would be true sodium reacts with water in a violent way