Explanation:
when Magnesium is reacted with Aluminum oxide, Aluminum being a less reactive metal than magnesium, is replaced by magnesium
Al2O3 + 3Mg - 3MgO + 2Al
hence reaction takes place
Answer:
The empirical formula is .
Explanation:
Given that, the combustion of 29.5 mg produced 80.2 mg CO₂ and 16.4 mg of H₂O.
Mass of C
g
Mass of H
g
Mass of O =
g
Number of mole of C
mol
Number of mole of H
mol
Number of mole O
mol
Dividing by lowest integer
The empirical formula is .
Answer:
D) The sun is a burning ball of gas, and the moon revolves around a planet.
Explanation:
Unlike what Jack has written in his table, the sun is comprised of 92% gas and has no definable rocky layer or even dust. The moon revolves specifically around the Earth.
The chemical formula depends on the type of acids it is. Acidic rain is a complex mixture of nitrous, nitric, sulfurous and sulfuric acids which all combine to lower the pH.
Answer:
b.
Explanation:
Cation and anion.
For example Na+ and Cl- -----> NaCl.