What is the half-life of a 0.5 g sample of radioisotope that decayed to 0.125 g in 9.6 min?

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Amixture with the same composition throughout is!

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.