Chromium (Cr) can combine with chlorine (Cl2) to form chromium chloride (CrCl3). Which equation is a correct representation of this reaction?

2Cr + 3Cl2 → CrCl3

2Cr + 3Cl2 → 2CrCl3

Cr + Cl2 → CrCl3

2Cr + Cl2 → CrCl3

In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction. express your answer as a chemical equation. identify all of the phases in your answer.

In 2002, the rare earth elements mine in mountain pass, california was closed because

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o