Question

TRACK YOUR PROGRESS 2. Fill in the blanks. a. A chemical reaction is represented by a b. Explosion of a firecracker is a chemical change that produces and c. Evaporation of water is water vapour. d. The flaky reddish brown substance formed on the surface of an iron object is called reaction takes place on the cut surface of fruits and vegetables. as heat is absorbed to convert it into e. The ______________ reaction takes place on the cut surface of fruits and vegetables​

Answer 1

Answer:

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Explanation:

1)number of atoms /formulae or symbols

2)heat,ash and gases

3)endothermic reaction

4)rust(iron oxide/FeO)

5)chemical(might be)