Why isn't pure copper used for bells instead of bronze?

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table