The element symbol for Mercuary should be capitalized like this: Hg It should be like that no matter how you have it in an equation.
Ignoring Matty's ignorance of the question asked...
According to Wikipedia "In former versions of the IUPAC recommendations, names were written with a capital initial letter. This practice has been abandoned in later publications.[3] The names of chemical compounds and chemical elements when written out, are common nouns in English, rather than proper nouns. They are capitalized at the beginning of a sentence or title, but not elsewhere. Note that for chemical elements this applies to the word only and not the chemical symbol, which is always capitalized. Both rules remain even with chemical elements derived from proper names which would otherwise be capitalized, in keeping with IUPAC policy to differentiate proper names from things named after proper names. Thus, it is californium but the symbol is Cf, and einsteinium, but symbol Es. Note that names for odd or rare chemicals are uncapitalized like common ones, and thus uranium and plutonium (symbols U and Pu) should be uncapitalized like carbon or iron (symbols C and Fe). This rule (full name uncapitalized but symbol capitalized) applies also to isotopes and nuclides, when completely written out: thus 14C but carbon-14. (The element Mercury is uncapitalized, but of course the planet and god Mercury remain capitalized proper nouns)."
So no, mercury isn't capitalized unless it refers to the planet or the god. Or Freddie Mercury, who is a god.
no
No.
It should only be capitalized if it is the beginning of a sentence, if is part of a proper noun, or if it is a word in the title of a book, article, movie, story, etc.
Yes it should be pronounced zoo ology
No, the word "science" is a common noun. Proper nouns are capitalized.
The word 'will' should be capitalized only when it is a person's name or the first word in a sentence. As a verb or common noun, it should not be capitalized.
In most cases, the word "other" should not be capitalized in a title unless it is the first word or part of a proper noun. The general rule is to capitalize the first word, proper nouns, and any significant words in a title, but "other" is usually considered a common word and not capitalized.
The second word should not be capitalized
Yes, Sunday should always be capitalized.
As an abbreviation it should be capitalized.
Yes it should be capitalized.
Yes, Greek should be capitalized.
The anagram is mercury (a liquid metal), capitalized Mercury as the name of the planet nearest the Sun.
Yes Capitalized
The word "banker" should not be capitalized unless it is at the beginning of a sentence or part of a title.
No, the word "epitaph" should not be capitalized unless it is at the beginning of a sentence or part of a title.
Yes it should be capitalized.