The statue of Liberty is made out of copper metal. When it was first constructed, the color of the copper metal was bright burnt orange. Over time, however, it slowly developed a green color as it was exposed to air. What happened to the statue of liberty?

Pls! plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below. cell p: does not capture sunlight cell q: has cytoplasm but no chloroplast which statement about the two cells is correct? cell q also has a cell wall. cell q also has large vacuole. cell p also has a large vacuole. cell p also has a cell membrane.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Do polar molecules have ionic bonds?