Answer:
126.99g
Explanation:
NiO has a molar mass of 74.7 g/mol. This means that one mole of nickel (II) oxide has a mass of 74.7 grams. We can use stoichiometry/dimensional analysis to figure out how many grams are in 1.7 moles.

The best name for NO3 is Nitrogen Trioxide, it is very aggressive and corrosive. Hope this helped! Brainliest is always appreciated!
Neon is an element because it is a pure atom
Answer:
i dont know sorry ang hirap kasi