What is the 4th element aside from liquids, solids, and gases.

The particles that are found in the mucleus of an atom are 1. neutrons 2. electrons only 3. protons and neutrons 4. protons and electrons

How are atoms and elements related?

Calculate the density of a sample of 1.00 mole of NH3 at 793mmHg and - 9.00 C

How would an electron shell model of an oxygen atom (O) appear after the atom has formed chemical bonds? a. It would have six electrons in the outermost shell. b. It would have six electrons in the innermost shell. c.

Runoffs from a mine have contaminated the groundwater in a location. This might cause health problems among people in the location.

Type in he correct values to correctly represent the valence electron configuration of oxygen

What stressors will affect the value for Keq according to Le Chatelier's principle? A. increasing the concentration B. decreasing the concentration C. decreasing the pressure D. increasing the temperature

N aqueous solution of sodium hydroxide is standardized by titration with a 0.154 m solution of hydrochloric acid. if 17.5 ml of base are required to neutralize 17.6 ml of the acid, what is the molarity of the sodium hydroxide solution?

How large a volume is need to contain 21 grams of silver? (info: density of silver is 10.5)

How could Cl change to gain stability? lose 7 electrons gain one electron