Empirical formula for 6. 63.52% Fe, 36.48% S

A mixture of oxygen and argon gases at a total pressure of 851 mm Hg contains oxygen at a partial pressure of 449 mm Hg. If the gas mixture contains 5.98 grams of oxygen, how many grams of argon are present?

Why might an earthquake have more than one intensity

How many electrons are in the 2p sublevel of nitrogen?

Strontium has a atomic number of 38 and a mass number of 88 how many neutrons are in one atom

1. X is a crystalline salt. On exposure to air, there is a loss in mass of x (a) suggest a phenomenon exhibited by x. (b) mention 2 salts that x could be.

Which process uses a volume of solution of known concentration to determine the concentration of another solution? (1) distillation (3) transmutation (2) substitution (4) titration

How could weathering by release of pressure affect the amount of weathering by freezing and thawing?

What are the major water reservoirs of the world?

Name four elements that have properties similar to chlorine

What are three signs that a chemical change has taken place