How many valence electrons does chloride (Cl-) have?

The mass of a certain atom is 4.086 x 10-22 mg. This is the same mass as

In which year was the Equal Pay Act passed?

You have two separate containers, one with 1 mol of carbon dioxide gas and the other with 2 mols of nitrogen gas. The pressure of both gases is 1 bar and the temperature is 25oC. Both cases can be treated as ideal gases for our purposes. Part A. What is the entropy of each individual gas in its own container. Part B. Now you mix the two gases together into one container, while maintaining a constant temperature and pressure. What is the mixing entropy? Part C. What is the total entropy of the separated gases and what is the total entropy of the combined gases. Part D. Use the following graph to interpret your result from part c. Explain how this graph reflects the equation you used to calculate the mixing entropy. Highlight the mixing entropy for the fraction of carbon dioxide encountered in this example. Is your result in part c what you expected? Provide a rationale for your answer.

What would the mass of a metal sample have if the sample had a volume of {v} mL and the metal had a density of {d} g/cm3?

What charge does a aluminum cation always have?

Charles Darwin reasoned that because there are limited resources there would be competition for those resources and therefore not all individuals would be able to reproduce.

The distance between two points of adjacent waves is called the __________________.

The first vertebrates to live on land were _____.

You are watching a movie in which one of the characters excitedly claims to have found human remains in Asia dated at 10 million years old. The date was obtained by carbon-14 dating. What is your reaction?