These compounds are all ionic structures, which means they’re formed from one metal and one non metal ion. Usually, in the chemical formulas of these ionic compounds, the metal ion is in front of the non metal ion. When you identify the non metals (or metals), make sure you give their element name, instead of their ion name. (Eg in MgO, the ion names are magnesium and oxide ion, but the elements are magnesium and oxygen.)
Therefore, MgO, magnesium oxide, the non metal is oxygen.
NaH, sodium hydride, non metal is hydrogen.
For the third one, i suppose you’re looking for AlBr3, because aluminum and boron are both metals and metalloids and they do not form an ionic bond. So, if you’re looking for AlBr3, aluminum bromide, the non metal is bromine.
And for FeS, iron (ii) sulphide, the nonmetal is sulphur.
answer: We could know that Bolivar's political goals for South America were never achieved since South America is not a unified country, but it is formed by 13 separated nations.
Explanation: Simon Bolivar was the one who most strongly proposed an alternative of political organization to overcome the territorial fragmentation of the former Spanish colonies. The proposal of the Venezuelan consisted in the creation of a political unit that grouped all the territories that had been part of the Spanish empire in the Americas.
ps. im not taking full credit for this answer but i really hope this helps :))
Many struggling businesses made large profits during World
War II through war contracts with other countries, Because it is still at this
moment when everyone is still coping with the after effects and casualties of
war, therefore businesses is still hard on these days.
The right answer is the letter C.
Throughout history, China was exploited abusively by Europeans, mainly by England in Century XIX. This exploitation was very profound because local elites supported this domination by basing themselves on the Confucian philosophy, which preached respect for the hierarchy and the past, maintaining the traditional structures of existing privileges