How would a system in which both matter and energy are exchanged freely between the system and the surroundings be classified?

The density of gas particles in a section of Earth's atmosphere decreases. Which of the following is the most likely explanation for this event?

Is glue a liquid or a solid

Acceleration is defined as the rate of change for which characteristic? time velocity position displacement

How is a net ionic equation written from a complete ionic equation?

What is the momentum of the canoe?

Janais lives near the ocean. How do earth, the sun, and the moon interact to affect Janais's life?

Which observation illustrates the law of conservation of mass? The C:O mass ratio of a particular compound is the same, regardless of the size or source of the sample. When 3 g of carbon reacts with 8 g of oxygen, 11 g of carbon dioxide is produced.

Which beat describes heat

One type of cat has the scientific name Felis domesticus, while another type of cat is called Felis tigris. What can be correctly stated about these two cats? A. They are members of the same species but different genera. B.

How much heat is required to increase the temperature of 198.5 grams of water from 25.0 degrees Celsius