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Why should we put a glass on candles for experiments and why should we put candles on sand trays ?
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What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)
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Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change
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Why should we put a glass on candles for experiments and why should we put candles on sand trays ?...
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