The magnitude of a force is

A sample of gas has a pressure of 3.2 atmospheres at a temperature of 301 Kelvin. What would be the pressure of the same sample of gas when the temperature is decreased to 285 Kelvin? Show all of the work used to solve this problem.

Which of the following is a way that minerals are formed? a. Minerals are left behind when super-heated water within the Earth cools. b. Minerals are left behind when water evaporates. c. Minerals are created through the destruction of other matter.

Which of the following is required to change the state of matter?

Calculate the amount of heat needed to increase the temperature of 250 g of water from 20.0 ºC to 46.7 ºC. a 28000 J b - 13751 J c - 28000 J d 6675 J e 13751 J

Balanced forces do not change the motion of an object's direction True or False Apex

What characteristic is shared by most simple polyatomic ions? A) They are anions. B) They are bonded ionically. C) They are cations. D) They have positive charges.

Potassium ions (k+) have a positive charge. What happens to a potassium atom electrons when it becomes an ion

At what pH do you think acids become too dangerous to touch? Basis? Explain your answers.

How do endothermic processes differ from exothermic processes

Before a race, an athlete warms up by jogging around the track shown below at a constant rate of 2.3 m/s. What statement best describes his motion as he jogs around the curved part of the track?