A student puts a glass of water in the freezer. Later, he notices ice forming on the surface of the water. Which property of water best explains why ice forms on its surface?

Benefits of using n2o as a refrigerant.

Which statement explains the type of friction acting on each object? The bike has rolling friction, the sled and the motorcycle have sliding friction, and the elephant has static friction.

How is rubbing alcohol a homogenous mixture?

Give an example of how environmental science might involve geology and chemistry.

How do the crystallization and settling of the earliest formed minerals affect the composition of the remaining magma?

What compares a law and a theory?

Explain what domain would best be represented by the "?" in the diagram. A) Eukarya because the organisms are all eukaryotic. B) Eukarya because the organisms are all prokaryotic. C) Bacteria because some of the organisms are autotrophs.

If you are eating a hamburger, it is an example of a consumer eating another consumer. a) true b) false

What mass of NaNO3 is needed to make 3.5 L of 2.2 M solution? (Na = 23.0g, N=14.0g, O=16.0g) Explain in steps

In which group do all atoms have seven valence electrons in the ground state?