A sample of carbon dioxide in water at room temperature has a hydroxide ion concentration of 7.9×10−8 M. What is the hydronium ion concentration of the solution? Your answer should include two significant figures. Write your answer in scientific notation. Use the multiplication symbol rather than the letter x in your answer.

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.