It is not a pure substance, because a solution are mixed chemicals in a way that the molecules are not bonded with one another. Thus, separating them from compounds and elements, which are pure substances.
Double replacement i believe
An Insulator.
Insulators prevent flow of electric current. Example is wood, clay.
Answer:
It might cause fire or extreme smoke.
Explanation:
1/2 - 3/7 = 7/14 - 6/14 = 1/14
