Question

define chemical change and given two example​

Answer 1

Answer:

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. ... An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen.

Explanation:

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Answer 2

What is a Chemical Change?

A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed.

Examples of Chemical Change

• Burning of paper and log of wood
• Digestion of food
• Boiling an egg
• Chemical battery usage
• Electroplating a metal
• Baking a cake
• Milk going sour
• Various metabolic reactions that take place in the cells
• Rotting of fruits
• Decomposition of waste
• The explosion of fireworks
• The reaction between salts and acids.
• Rusting of iron
• Lightening a matchstick

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