How is oxidation of copper, seen on the statue of liberty, similar to flammability and how is it different from flammability?

Which other elements contain the same number of outer electrons as sodium

How does climate change cause the ocean's thermohaline current to slow down?

Which elements are found in glucose, the product of photosynthesis? a. carbon, hydrogen, and oxygen b. carbon and hydrogen c. carbon, nitrogen, and oxygen d. hydrogen, nitrogen, and carbon