Lewis structure for carbon tetrabromide (cbrá), in which a central carbon atom is bound to four atoms of the group 7a element bromine?

The density of a planet is 0.69 g/cm3 (density of water is 1.0 g/cm3). which of the following planets might this be? a. mercury b. venus c. saturn d. mars

Which mathematical relationship should you us to convert moles of a substance into grams

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.