What type of chemical reaction does this equation represent?

Ag2S + KCN --> AgCN + K2S

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?