There are several exceptions to the Stock system rule of using Roman numerals in the name of a cation. Two of the most
common exceptions are zinc and silver. In compounds, zinc
always carries a 2+ charge and silver nearly always carries a 1+
charge. For that reason, the Stock system is typically not used
for compounds of zinc and silver.
What is the correct formula for silver fluoride?
a AgF2
b SiF2
C SiF
d AgF

it should be all of them because it asks if you included all of those in your answer

explanation:

elements make up everything, and they combine to make compounds.

the answer is c

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.