Why can't elements be broken into simpler substances?

What is the theoretical yield of sodium chloride for the reaction of 55.0 g na with 67.2 g cl2?

Which one is an accurate description of an erosion?

In preparation for a demonstration, your professor brings a 1.50-L bottle of sulfur dioxide into the lecture hall before class to allow the gas to reach room temperature.

Convergent boundaries are zones on what plates

When you have finished adding the necessary amount of NaOH to your beaker, what color will the litmus paper turn?

A fish company delivers 22 kg of salmon, 5.5 kg of crab and 3.48 kg of oysters to your seafood restaurant. What is the mass, in kilograms of the seafood? What is the total number of pounds?

If 38.7 grams of lithium chlorate decomposes, how many grams of oxygen gas can be produced?

Balance the following redox equation in acidic solution using the smallest integers possible and select the correct coefficient for the H + (aq) ion.

Toussaint L' ouveeture lead a revolt that eventually resulted in Independence for

If a solution contains 1 x 106 hb molecules, how many o2 binding sites are available? if the solution of hb is 50% saturated with o2, how many binding sites are occupied by o2?