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Quiz Experiment 3

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Q Question 1 1 / 1 pts What is the difference between a physical and a chemical change? Question 2 5 / 5 pts Identify each of the following as a COMPOUND, an ELEMENT, a SOLUTION, or a HETEROGENEOUS MIXTURE. Question 3 3 / 3 pts The following gases will be tested in this experiment for their characteristic properties: water vapor, sulfur dioxide, oxygen and hydrogen. Match these gases with their characteristic properties: (a) When a wooden splint is lighted then its flame is blown out, this gas makes the glowing red splint burst into flames again ["", "", "", ""] . (b) This gas has a distinctive, sharp and choking odor ["", "", "", ""] . It is a major cause of the environmental phenomenon called “acid rain”. (c) This gas explodes when ignited with a lighted wooden splint hydrogen .

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1.Physical can be when you cut paper it just changes the physical form of the object and can be still reversed in process but chemical is like if we were to burn that piece of paper. Burning the paper is a chemical change because you cannot longer reversed effects and ass change that piece of paper into something new like ash.