A fossilized animal that was killed by a volcanic eruption has 6.25 percent of its original amount of carbon-14 remaining; this radioisotope has a half-life of 5730 years. How long ago did the volcano erupt?

The pressure at 99 feet below the surface of the ocean is: greater than the pressure at sea level greater than the pressure 33 feet below the surface about 59 pounds per square inch all of the above

Use the conversion factor 1 amu = 1.66054 * 10-24 g to answer the following questions. a) 1.67 x 10-24 g of neurons is how many (amu)

Gasoline has a density of. 74g/mL. How many milliliter if gasoline have a mass of 2.5kg?

What must always be the same on both sides of a chemical equation?

Andrew plays trumpet in the concert band. He holds the trumpet still at his side until it is time for him to play. When it is time, he brings the trumpet up to his mouth and starts to play.

Enter a balanced chemical equation for the combustion of gaseous methanol.

Being able to identify good source of scientific information and apply the knowledge to problems in your life is a part of having A Scientific hypothesis B Scientific inquiry C Scientific literacy D Scientific laws

Hexane and heptane are miscible with each other in all proportions. In making a solution of them, is the entropy of the system increased, decreased, or close to zero, compared to the separate pure liquids? a. The entropy of the system is increased.

Determine the hydronium ion concentration in a solution that is 0.00014 M HCl. Answer in units of M.

Which element in period 2 has the most mass