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Look at the image of landforms which point has the highest elevation
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This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.
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Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
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Chemistry, 22.06.2019 12:30
Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.
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One similarity and one difference between an element and a mixture of elements
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Look at the image of landforms which point has the highest elevation...
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