What are the number of molecules in 2.56 moles of water?

What happens to the pH of an aqueous solution of HF when solid KF is added?

Is an electron dense or not?

How many hydrogen atoms are in 5.20 mol of ammonium sulfide?

The chemical reaction 2 H2O + energy → 2 H2 + O2 is 1. a synthesis reaction. 2. an endothermic reaction. 3. an exothermic reaction. 4. an ionic reaction.

Which best describes what happens when a person sees an orange T-shirt? A. The T-shirt radiates all colors of light except orange to human eyes. B. The T-shirt absorbs orange light from human eyes. C.

An organic compound is one that contains the element carbon. true or false

Most thermal energy in the atmosphere is transferred by what

Identify water. weak electrolyte, weak acid nonelectrolyte strong electrolyte, strong acid weak electrolyte, strong acid strong electrolyte, weak acid

What is the atomic weight of a hypothetical element consisting of two isotopes, one with a mass of 62.2 u which is 24% abundant, and the other with a mass of 64.0 u?

A pure compound contains 24 g C, 4 g H, and 32 g O. If no other elements are present, determine the empirical formula of the compound. Be sure to show your work.