Answer:
In hyphen notation, the mass number is written after the name of the element. For example, in isotopic notation, the isotope of carbon that has a mass number of twelve would be represented as 12C . In hyphen notation, it would be written as carbon-12.
Explanation:
lol just took the question and looked it up online this was the first thing that i saw if its not correct im sorry
Chemical properties include reactivity with other elements of substances, toxicity, flammability, and chemical stability
just to name a few
it is a i believe: Bicarbonate and carbonic acid (A)
The number of Atoms must be the same on both sides
