Calculate the molar concentration of OH ions in a 0.066 M solution of ethylamine (C2H3NH2; Ký = 6.4 x 10-4). Express your answer to two significant figures.

Which feature do highland climates have that lower elevation areas do not?

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

What best discribes the relationship between wavelength and frequency in a electromagnetic wave