Without Doing Any Calculations, Identify Which of the Following Compounds

question 23

Essay

Without doing any calculations, identify which of the following compounds has the largest percent sodium by mass and which has the smallest. Explain your logic.
sodium oxide, Na₂O; sodium hydroxide, NaOH; sodium hydrogen carbonate, NaHCO₃;
sodium carbonate, Na₂CO₃; sodium peroxide, Na₂O₂

---

Definitions:

Conditioned Stimulus

A previously neutral stimulus that, after becoming associated with an unconditioned stimulus, comes to trigger a conditioned response.

Conditioned Stimulus

A formerly neutral signal that, after consistent association with an unconditioned stimulus, triggers a learned response.

Unconditioned Stimulus

In classical conditioning, a stimulus that naturally and automatically triggers a response without prior conditioning.

Conditioned Response

An automatic response established by training to an ordinarily neutral stimulus after association with an unconditioned stimulus.