Chemistry, 05.08.2019 01:50 frankierice020
Which observation is a sign of a chemical change? a rotting potato gives off a bad smell. a melting block of ice leaves a large puddle. a cloud changes shape when blown by wind. a plaster statue breaks when it falls onto the floor.
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What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.
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One similarity and one difference between an element and a mixture of elements
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Which of the following statements is true? an atom consists of protons, electrons, and neutrons.an atom consists of protons and neutrons.an atom consists of electrons bonded to one another.an atom consists of protons bonded to one another.
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Which observation is a sign of a chemical change? a rotting potato gives off a bad smell. a melting...
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