What is duet rule in chemical bonding​

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

Salt in oceans comes from and of rocks

Astream of surface water reaches a porous portion of sediment and seeps into the ground. this water eventually joins a large reservoir of water located beneath the earth's surface. the example above describes the interacting with the a. cryosphere; biosphere b. hydrosphere; biosphere c. hydrosphere; geosphere d. cryosphere; geosphere