The two major groups of dinosaurs during the Jurassic Period were the saurischians and the

A) pterosaurs.

B) ichthyosaurs.

C) ornithischians.

D) herbivores.

What is the most disorganized state of matter?

The nucleus of an isotope of chlorine contains 20 neutrons

A gas occupies a volume of 72 ml at 400 k and 800 torr. if the temperature drops to 200 k and the pressure changes to 400 torr, what volume would the gas occupy?

Determine which elements are balanced and unbalanced for each chemical equation below when every compound is given a coefficient of one.

What natural factors can cause climate change?

What is a resistor do?

Select all of the following statements that are incorrect. A. Solids, liquids, and gases are all able to act as solutes in a solution. B. Solids, liquids, and gases are all able to act as solvents in a solution. C.

Molecular bromine is 24 percent dissociated at 1600 k and 1.00 bar in the equilibrium br2 ( g. = 2br ( g. calculate kp at 1600 k.

which layer of the earth contains melted silicone compounds a. core b. mantle c. biosphere d. asthenosphere e. lithosphere

What is the relationship between law of conservation and chemical reaction?