Benzoyl peroxide is a common medication to treat acne. It is also used to bleach hair and teeth. The molar mass of benzoyl peroxide is 242 g/mole. The percent composition is 69.4%
carbon, 4.2% hydrogen and 26.4% oxygen. Determine the empirical and molecular formula
of benzoyl peroxide.

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.