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Guide Questions:
1. When liquid water changed into ice (solid) or gas (vapor), is it not water anymore? Explain.
2. What happens to particles when the matter changes its phase?

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RiderLangviz

[tex] Answer \: : [/tex]

1. Water is a liquid at room temperature, but becomes a solid (called ice) if it is cooled down. The same water turns into a gas (called water vapor) if it is heated up. The changes only happen when the substance reaches a particular temperature. Water turns to ice at 32ºF (0ºC).

2. During chemical changes particles do change with atoms or ions regrouping.

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