<span>The wave nature of an electron is indicated by its motion and the diffraction and interference of electrons in a beam.</span>
Answer: stable unmetal
Explanation: if you count electrons, you get 35 and it is element Br
Answer:
Coal is not classified as a mineral because it comes from organic materials.
Explanation:
Minerals are naturally-formed substances that have a specific chemical makeup. They are created when elements combine. Minerals are <u>non-organic</u> and most have a set crystalline structure. Examples of minerals include diamond, azurite, beryl, and pyrite.
Double replacement.
Ba(OH)2 + H2SO4 ====> 2H2O + BaSO4
