This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
Mercury and silver alloy reaction when mixed what is formed? 
Select and explain. 
A. Precipitation of Ag with Hg, B. Dissolution of Ag in Hg, C. Cu reacts with Hg, D. Tin reacts with Hg
A: Precipitation of Ag with Hg
Answer: A: Precipitation of Ag with Hg 
Explanation: None