H3PO4 conjugate base

Why does a leak in a car tire (at constant temperature) decrease the pressure of the tire? A) It removes kinetic energy from the system. B) The number of molecules decreases. C) The temperature decreases. D) The volume decreases.

Which particles in an atom can increase or decrease in number without changing the identify of the elements?

Bohr's atomic model differed from Rutherford's because it explained that electrons exist in specified energy levels surrounding the nucleus. electrons are embedded within the rest of the atom like plum pudding. an atom is an indivisible sphere.

An element has an atomic number of 92 and a mass number of 234. how many neutrons does the element have? 192 142 92

Beet juice is added to a unknown solution and changes color from red to purple. Curry powder, added to the same solution, turns a deep red color. Is the hydrogen concentration high and the hydroxide concentration high?

An estser is the reaction product between: a. Alcohol and organic acid B. Alcohol and oxygen C. Ketones and Oxygen. D. Aldehydes and Alcohol

How is the way a mixture is combined different from how a compound is combined?

Consider n2 (g) + 3h2 (g) →→ 2nh3 (g). what is the mass of nitrogen gas required to react with 0.129 g h2?

Write a sentence that uses the words "mass extinction" correctly

Which description is not a property of an acid? A turns litmus paper red B bitter taste C corrosive D dissolve metals