How are rubies, emeralds, and sapphires formed?

PCl3 (g) + Cl2 (g) ⇋ PCl5 (g) Kc = 91.0 at 400 K. What is the [Cl2] at equilibrium if the initial concentrations were 0.24 M for PCl3 and 1.50 M for Cl2 and 0.12 M PCl5.

What is lewis structure?

Complete the sentence: thermal energy is transferred between objects until themal ... is reached

Which is more acidic black coffee or orange juice

If you produced 76.10 grams of potassium chloride in the reaction how many grams of potassium were required?

What is the pH of a 1.0 X 10 - M solution of nitric acid?

Maria examines a mixture that appears to be the same throughout. However, when she looks at a sample using a magnifying lens, she can see small droplets of liquid surrounded by another liquid.

The density of a gas is measured at 1.653 g/L at 746 mmHg and 25.0 °C. What is its molar mass?

What significant contribution did Lavoisier make to chemistry? A. He was the first to use scientific experiments to learn about atoms. B. He was the first to discover the atom. C. He was the first to propose the atomic theory. D.

How do you calculate average percent yield?