What does O-H ... O-H represent?

Light that bounces off a surface is said to be A. reflected B. refracted C. absorbed D. radiated

What is the most abundant substance dissolved in sea water? magnesium chloride sodium chloride

What is the Molarity of a solution with 1.8 mil KCl dissolved to a volume of 1.5L

Formic acid (HCO2H) has a dissociation constant of 1.8 _ 104 M. The acid dissociates 1:1. What is the [H+] if 0.1 mole of formic acid is dissolved in 1.0 liter of water? Use a scientific calculator. 0.9 _ 10^-3 M 4.2 _ 10^-3 M 7.

The half-life of radium-226 is 6400 years. If I have 6750 g after 25,000 years, how much radium-226 did I have in my original sample when I started? I had___g in my original sample. Record your answer to the nearest whole number

A man is making chicken noodle soup and has found it to be too salty. What method could he use to make the soup less salty? a. Add equal measured amounts of water to the soup. b. Bring the soup to a boil so that some of the broth evaporates. c.

A solution of H2SO4 (aq) with a molal concentration of 3.97 m has a density of 1.216 g/mL. What is the molar concentration of this solution?

How can you chose values for x when making a table of values representing a real world situation?

If a sample containing 2.50 ml of nitroglycerin (density=1.592g/ml) is detonated, how many total moles of gas are produced?

A helium balloon initially at room temperature is dunked into a bucket of liquid nitrogen (T = 77 K). Which of the following will occur?