A certain compound contains C, H and O. One molecule of the compound is known to contain 2 atoms of O, and the number of atoms of H is two times the number of atoms of C per molecule. when a quantity of the compound is burned completely in O2 to form CO2 and H2O as the only products, .375 mol of O2 is consumed and .3 mol of H2O is formed. Calculate the chemical formula of the compound.

When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.

What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer.