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Often on a topographic map, every fifth contour line is darkened. what is this line called? a. key b.slope c.benchmark d. index contour
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Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.
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Why doesn't heat added to water make the tempature rise above 100c
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How are isotopes of the same chemical element alike? how are they different?
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Calculate the enthalpy change for the thermite reaction: 2al(s)+fe2o3(s)→2fe(s)+al2o3(s), δh∘rxn=−8...
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