The student conducts an experiment to determine the composition of a mixture of nahco3 and na2co3. the student places a sample of the mixture into a preweighted test tube that is attached to container that holds a drying agent. answer

When you talk about a drying agent, its purpose is to remove the water in the compound. The compound NaHCO₃ can be decomposed when heated. The reaction is:

2 NaHCO₃ → Na₂CO₃ + CO₂ + H₂O

The drying agent could remove H₂O while CO₂ can escape as gas. Thus, you can determine the total amount of Na₂CO₃ in the test tube by weighing it. 

Elias is almost correct. he just got it backwards.the correct answer is that it demonstrates elastic potential energy transforming into kinetic energy.

Tolerance to high levels of salinity