Physical and Chemical Changes - Page 4
Questions
- Why are new properties observed during a change of state not signs of a chemical change?
- Is burning considered a physical or chemical change?
- Why is breaking down a compound into its elements considered a chemical change?
- It is said chemical and physical properties are closely linked. Why does a chemical change also cause a change in physical properties?
- When methanol is burned and leaves a residue is this a chemical or pyhsical change?
- The dissolving of which salt will produce both a physical and chemical change?
- Is salt dissolving in water physical or chemical change?
- Is melting sugar a physical or chemical change?
- Is tarnishing considered a physical or chemical change?
- What name is given to substances that resist changes in pH?
- Is melting crayons is an example of a chemical or physical change?
- Why does an egg change color and texture when heated?
- Is wood burning a physical or chemical change?
- Is water boiling at 100 degrees Celsius a physical change?
- What are four possible clues that a a chemical change has taken place?
- What are chemical changes and physical changes?
- When charcoal burns, it undergocs a chemical change that produces heat and light. Besides the charcoal, what is the other reactant in this chemical change?
- What chemical change did the Statue of Liberty likely undergo?
- What is a physical change?
- Is corrosion a chemical change?