The density of pure solid copper is 8.94 g/mL. What volume does 34 g of copper occupy?

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?