71% of earths surface is covered in water. how much of it is fresh water and how is it distributed

What is difference between a pH of 8 and a pH of 12 in terms of H + concentration?

Why do scientists think that the solar nebula is important for earth

Which one of the following processes results in a decrease in the number of neutrons? corrosion electron capture gamma emission positron emission alpha emission

According to one acid-base theory, an acid is an (1) H + acceptor (2) H + donor (3) OH - acceptor (4) OH - donor

If a cloud holding the most water vapor it possibly can suddenly cools what will occur

Calculate the pH of 0.65 M H2SO4 (sulfuric acid) solution? (Ka2: 1.1x10-2)

Ozone reacts completely with NO, producing NO2 and O2. A 13.0 L vessel is filled with 1.30 mol of NO and 1.30 mol of O3 at 401.0 K. Find the partial pressure of each product and the total pressure in the flask at the end of the reaction.

Which particles make up the nucleus of an atom? protons and electrons neutrons and electrons protons only protons and neutrons neutrons only

An egg is fried is that a physical or a chemical change

How many mono-; di -; and trichloro derivatives are possible for cyclopentane?