Question

What are the physical or phase changes that happen in materials as they are affected by temperature? How about the chemical change?

Answer 1

Answer:

The four types of phase change are solid to liquid, liquid to gas, solid to gas and solid to solid. The best example is water-ice where solidification and melting occurs at a constant phase change temperature of 0 °C.

Explanation:

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.

Answer 2

Ur Answer :

• The four types of phase change are solid to liquid, liquid to gas, solid to gas and solid to solid.
• 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.

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