Small Amounts of Oxygen Gas Can Be Produced for Laboratory

question 59

Multiple Choice

Small amounts of oxygen gas can be produced for laboratory use by heating potassium chlorate, which causes it to decompose by the following reaction: ___KClO₃(s) → ____KCl(s) + ___O₂(g) (unbalanced) Balance the equation, and determine the mass of oxygen that should be formed if 15.0 g of potassium chlorate decomposes.

• A)11.7 g
• B)57.5 g
• C)173 g
• D)5.88 g
• E)86.1 g

---

Definitions:

Learning

The process of acquiring new understanding, knowledge, behaviors, skills, values, or preferences through study, experience, or teaching.

Behaviour

The actions, reactions, or conduct of an organism, often in response to its environment or stimuli.

Experience

The knowledge or skill acquired by a person through direct observation or participation in events or activities.

Unconditioned Stimulus

A stimulus that automatically triggers a response without any need for prior conditioning.