What is the valence of K2O2

The net force acting on an object is 0 N. Which of the following best describes the motion of the object?

Think about a wooden chair and a balloon. what do these two objects always have in common?

Ammonia produces an alkaline solution when dissolved in water because ammonia a. is an acid. b. does not contain oh - ions. c. is almost insoluble in water. d. produces oh - ions when it dissolves.

What characteristic does it have as a gas that it did not have as a liquid?

Given that an electromagnetic wave is generated by an oscillating electron, how are the frequency of the wave and the oscillation frequency of the electron related? A.

Aqueous concentrated nitric acid is 69% HNO3 by weight and has a density of 1.42 g/mL. What is the molarity of this solution? What is the molality of the solution?

As the elements in Group 17 are considered in order of increasing atomic number, the chemical reactivity of each successive element (1) decreases (2) increases (3) remains the same

What is the concentration of an acid with a pH of 2?

g Assuming that the specific heat of the solution is 4.18 J / (g⋅∘C), that its density is 1.00 g/mL, and that the calorimeter itself absorbs a negligible amount of heat, calculate ΔH in kilojoules for the reaction.

Calculate the percent ionization of 0.0075 m butanoic acid (ka = 1.5 x 10-5) in a solution containing 0.085 m sodium butanoate.