A chemistry student desired to study sulfur. Sulfur exhibited the following characteristics with oxygen: (a) It...
A chemistry student desired to study sulfur. Sulfur exhibited the following characteristics with oxygen:
(a) It reacts with oxygen to produce sulfur dioxide.
(b) It also reacts with oxygen to produce sulfur trioxide.
(c) The sulfur trioxide produced can react with water to produce sulfuric acid.
(d) The sulfur dioxide produced can react with water to produce sulfurous acid.
Identify steps (a), (b), (c), and (d) as chemical or physical changes. Please give rationales for your answers.
Homework Answers
- A physical change is a process that does not involve change in the chemical composition of the components of a system and hence its properties remain the same.
- A chemical change is defined as a process which involves change in the bonding pattern of the atoms and therefore change in the chical properties.
All the steps given here are chemical changes, since each involves the formation of a new substance that has different properties than the substances it comes from.
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