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Biology 14 Online
Warriorz13:

Which is a characteristic of a physical change? The chemical bonds in the substance are unchanged. The change cannot be seen. The molecules all move at the same speed. The substance has reacted with another substance.

Warriorz13:

@SkyVoltage43 @JustSaiyan

JustSaiyan:

The chemical bonds in the substance are unchanged.

SkyVoltage43:

The chemical bonds in the substance are unchanged.

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