Answer:
<em>Actually, I think that's </em><em>True.</em>
<em>Good Luck!~</em>

It turns into a gas when it evaporates
Answer:
A3B3
Explanation:
Molecular formula = n x empirical formula
(AB) n = 90
MM of AB = 30 g/mol
30n = 90
Divide both side by the coefficient n i.e 30
n = 90/30 = 3
Molecular formula = n x empirical formula
Molecular formula = n x (AB)
Molecular formula = 3(AB) = A3B3
Answer:
The reflection of light rays is one of the major aspects of geometric optics; the other is refraction, or the bending of light rays.
so its true.
Answer:
X₂Y₃
Explanation:
X⇒X³⁺ + 3e⁻ /×2
Y + 2e⁻ ⇒ Y²⁻ /×3
2X⇒2X³⁺ 6e⁻
3Y + 6e⁻⇒ 3Y²⁻
2X + 3Y ⇒2X³⁺ + 3Y²⁻ ⇒ X₂Y₃
Electron from one side and from other side can be shortened so we multiply half equations to get equivalent number of electrons on both side. Next step is summing these two half equations. Element Y takes two electrons from element X, so X become positive charged, and Y become negatively charged. It is very likely that element Y have greater electronegativity.