If the pH of a solution is 12.2, what is the pOH?

For the skeletal chemical equation LaC2 (g) + H2O (ℓ) → La (OH) 3 (s) + C2H2 (g) + H2 (g) what is the coefficient of C2H2 in the balanced equation?

Most scientific questions are developed from

You place a balloon in a closed chamber at standard temperature and pressure (STP). You double the chamber temperature while leaving the pressure constant. What happens to the balloon?

Missy Diwater, the former platform diver for the Ringling Brother's Circus had a kinetic energy of 15,000 J just prior to hitting the bucket of water. If Missy's velocity is 24.5 m/s, then what is her mass?

electronegativities of the elements Na, Al, P, and Cl follo a specific trend across the period. based on this trend the atoms of which electron will be most strongly attracted to?

Which of the following happens during a chemical change? Check all of the boxes that apply. One atom or more changes into atoms of another element. New substances with different properties are formed. Solids, liquids, or gases may form.

What material was added to powdered rock during tuttle and bowen's experiments?

Which of the following statements is true? Selected Answer: D. At least two of the above statements (A-C) are true. Answers: A. Ions are formed by adding or removing protons or electrons. B. Scientists believe that solids are mostly open space. C.

Does anybody know which element from the periodic table that has 19 electrons and 24 neutrons, for atomic charge.

Given the following reaction 2Al + 3Cl2 - -> 2AlCl3 How many grams of AlCl3 aluminum chloride will be produced from 125 g of Al and 125 g of Cl2?