Solution: Which of the following is a chemical change?A) boiling of waterB) melting waxC) broiling a steak on a grillD) condensing water vapor into rainfallE) carving a piece of wood

Problem

Which of the following is a chemical change?
A) boiling of water
B) melting wax
C) broiling a steak on a grill
D) condensing water vapor into rainfall
E) carving a piece of wood

Solution

We are asked to select which is the chemical change from multiple choices.


  • A chemical change is a kind of change in which a substance combines with another to form a new substance.
  • When chemical changes or reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated.
  • physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed, but no chemical reaction occurs
  • Physical changes are usually reversible. 
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