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Chemistry, 24.07.2019 23:30 andrewschmitz132

On the table below, record your observations before and after the interactions and note if mass was conserved. describe the changes in properties that prove a chemical reaction occurred. the first row is an example. observations before interaction observations after interaction was mass conserved? proof of a chemical reaction example: sugar + heat the sugar is in tiny white particles in a pile. heat is not seen but is implied by the heat source. the pile of sugar in the pot weighs 100 grams. there is a solid, light brown mass at the bottom of the pot. it weighs 100 grams. yes, both the reactants and the products weigh the same. there was not a chemical reaction. sugar did not change composition. it only melted. melting point is a physical property, and this is a physical change. steel wool + oxygen (fire) egg + heat water + heat zinc + hydrogen chloride sodium hydroxide + copper sulfate answer

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On the table below, record your observations before and after the interactions and note if mass was...
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