Zn (s) + 2HCl (aq) - > ZnCl2 (aq) + H2 (g) Which half reaction correctly describes the oxidation that is taking place?

Protons, neutrons and electrons of zn

Which compound matches the ir spectrum best?

6. If 0.500 mol NaN3 react, what mass in grams of nitrogen will result? 2 NaN3 → 2 Na + 3 N2 Show your work

Easy way chlorine exists mainly as two isotopes 37cl and 35cl which is more abundant

Giant sequoia trees (Sequoiadendron giganteum) are among the largest and longest-living organisms on Earth. These trees grow in weight by up to 1000 pounds of wood per year. As these trees are growing, they: A. All of the answer choices are correct.

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

Connie was making sodium chloride by adding an acid to an alkali. She followed the progress of the reaction with a pH sensor. At which pH would she know that the acid and alkali had completely reacted to give a salt solution?