What phase change is the following substance undergoing? First, the particles of this substance are closely packed and
are not easily compressed. After the change, the substance
can flow easily but cannot be easily compressed.
a freezing
b melting
Cevaporation
d deposition
e sublimation

b melting

Explanation:

The phase change the substance is undergoing is from solid to liquid and this is called melting.

The phase change from solid to liquid is facilitated by a melting process.

a polar bond is formed when electrons are shared unevenly between atoms

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

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