The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. what fraction of the tritium initially in a sample is still present 30 years later?

If the temperature of a balloon increases in pressure remains constant the volume

expressed in scientific notation (6.0 x 104) (3.1 x 10-1) =

Which of the following is the correct definition of chemical energy? A. energy stored in chemical bonds of molecules B. energy produced from the splitting of atoms C. energy of an object due to the random motion of its atoms and molecules D.

What kind of elements make up a metallic bond?

Serine has pka1 = 2.21 and pka2 = 9.15. use the henderson-hasselbalch equation to calculate the ratio neutral form/protonated form at ph = 3.05.

The ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. in the first step of the ostwald process, ammonia is reacted with oxygen gas to produce nitric oxide and water.

Convert 6.766 * 10 ms into s

How much CO2 is produced from 10g of CH4?

Two components combine to create a binary ionic compound. Name one of them

True or false. The synthesis of giant molecules from components of repeating units is polymerization.