Uranium-238 decays very slowly. its half-life is 4.47 billion years.

What percentage of a sample of Uranium-238 will remain after 13.4 billion years?

i have to test after 3 days!

Describe the structure of ammonium lauryl sulfate

5. Where are most plateaus located? a. Near mountain ranges b. Bordering ocean basins C. Beneath grabens d. Alongside diverging boundaries

Describe pyruvate processing

Identify the precipitate (if any) that forms when Na2S and CdSO4 are mixed. Express your answer as a chemical formula. Enter noreaction if no precipitate is formed.

Based on the location of nitrogen on the periodic table how many additional electrons does a nitrogen atom need in its valence shell to satisfy the oh slip rule when it comes to form bonds

A chemical engineer for a fertilizer company is determining the most efficient way to produce ammonia. the engineer carries out the haber reaction under four different conditions.

What type of Bond exist in a molecule of hydrogen Iodide

Which common material is an example of a polyamide?

A particular brand of gasoline has a density of 0.737 g/mL at 25 ∘ C. How many grams of this gasoline would fill a 12.8 gal tank (1US gal=3.78L) ?

A pump contains 0.5 l of air at 203 kpa. you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of air in the pump? 0.2 l 1.0 l 2.0 l 4.0 l