What is the relationship between wavelength and frequency

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world

In a ball-and-stick molecular model, what do the sticks represent?

Which term means two or more atoms that share electrons in a chemical bond? a. hydrogen bond b. moleculec. ionic bondd. element amd you