What is the atomic mass of an element if 4.00 grams of it contains 2.98x10^22 atoms

At a particular temparature, the equilibrium constant, Kc for the reaction, 2 NO (g) + 2 H2 (g) N2 (g) + 2 H2O (g) is 0.7689. Calculate the value of Kc for the reaction 2 N2 (g) + 4 H2O (g) 4 NO (g) + 4 H2 (g)

A child shivers in a cold rain but does not feel cold, what is the biochemistry behind it

The pH of a solution decreases by 2.0. How does the hydronium ion concentration of the solution change?

What is the relationship between air resistance and surface area?

Acids have a high pH true or false

How many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the following reaction? 4 KNO3 (s) → 2 K2O (s) + 2 N2 (g) + 5 O2 (g)

What was the ratio in the formula for iron (II) oxide

2C18H38 + 5502 → 36CO2 + 38H2O

What is the opposite of osmosis

Acid rain most often damages stone architecture by causing