Saturday, February 4, 2012
Your Questions About How Do Substance
Daniel asks…Is dissolving a substance in water a chemical or physical change? How do you know?Is dissolving a substance in water a chemical or physical change? How do you know?admin answers:It's a physical change. There is no chemical reaction that is how you know. If the water evaporates, the substance is recovered still without a reaction.Mandy asks…How do you clean a sticky substance off an ipod?I somehow managed to spill the fragrance wall plug-in liquid on my ipod. It's left a sticky
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