Which of these is the Bronsted-Lowry acid in this equation?

CH3 - + H2O - - > CH4 + OH-

Suppose of potassium nitrate is dissolved in of a aqueous solution of sodium chromate. Calculate the final molarity of potassium cation in the solution.

1. What percent of light passes through the sample if its absorbance A=2? 2. For the best calibration curve, the transmittance values (%T) should fall within the range from 10% to 90%.

In an experiment, what are the controls? a variable or variables that you manipulate during an experiment a variable or variables for which you cannot account a variable or variables that you must keep constant during an experiment a variable or

a cylinder of argon gas contains 50.0 l of ar at 18.4 atm and 127 Celsuis. How many grams are in the cylinder?

Read the chemical equation. N2 + 3H2 → 2NH3 Using the volume ratio, determine how many liters of NH3 is produced if 3.6 liters of H2 reacts with an excess of N2, if all measurements are taken at the same temperature and pressure? 5.4 liters 2.

Which of the following is a postulate of the kinetic-molecular theory? A. Gases are made up of particles that act like small, soft spheres that are always moving in a calculated fashion. B.

An atom's outermost electron arrangement determines how it interacts with other atoms. Which of the following atomic structures would be most likely to form an ionic bond? A. neon, which has eight outer electrons B.

The main acid in the stomach is hydrochloric acid (HCl). Which chemical equations show a reaction that occurs when someone takes an antacid? Check all that apply.

Which type of metals have high densities, strenght, and resistance to corrosion

White powder, when heated, produces a colourless gas and a black solid. Is the white powder and element?