A weather balloon at Earth's surface has a volume of 3.9 L at 299 K and 763 mmHg. If the balloon is released and the volume reaches 4.13 L at 720 mmHg, what is the temperature? Answer in units of K.

The principle of what states that hydrogen bonds can form only between certain bases in dna

An oil tanker spills a large amount of oil near the ocean shoreline. Which application of chemistry would best solve this problem?

A detailed explanation, one paragraph of the colligative property being discussed and why that property changes the way that it does when the amount of solute is increased.

What is the molarity of a solution that has 0.080 moles of calcium chloride dissolved in 850 mL of solution?

What is an example of bias in media

When 1 g of sodium chloride (NaCl) is placed in 100 g of water, a solution results. Once the solution is prepared, water is now considered what part of the solution?

1. How is pressure affected as depth increases? 2. As the sun heats the surface of the oceans, two layers of water result. What separates the layers? 3. How is temperature affected when? (a) the depth increases (b) the latitude increases 4.

Are nails in a jar with water a chemical change

What is the molarity of a solution composed of 4.73 g of potassium iodide (KI) dissolved in enough water to make 0.169 L of solution? Answer in units of M.

Suppose you were given a substance and asked to determine whether or not it was a plasma. Write the characteristics you would look for to identify the substance.