What is the freezing point of a solution of 1.5m aqueous solution of potassium bromide (KBr)? The freezing point depression constant of water is 1.86°C/m. Assume 100% dissociation.

Nickel crystallizes in the face-centered cubic (fcc) lattice. the density of the metal is 8902 kg/m3. calculate the radius of a nickel atom.

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle