One mole of an gas expannds isothermally to five times to its intitial volume calculate the entropy change in R the gas constant

A runner completes a 10 km run in 45 minutes. What is the runner speed in km/min

Which best describes why a physical change differs from a chemical change? A. A physical change predicts the behavior of a substance when in a reaction, whereas a chemical change is used to identify characteristics of a substance. B.

Which of the following is NOT one of the three components of a nucleotide? A.) carboxyl group B.) phosphate C.) 5-carbon sugar

What are the kingdoms of eukaryotes?

Which of the following families contains elements that will not form compounds?

Ways that charges can be transferred

A cricketer can throw a ball to a maximum horizontal distance of 100m. How much high above the ground can he throw same ball

What is the relationship between the slope of the position graph of an object and its velocity?

Differeniate between thermal energy and heat

The term that describes the time when the sun's are directly over the equator is: