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Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.
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What does x represent in the formula for the compound xcl4?
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In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids
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Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?
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Looking at the periodic table, which pair of elements will have the same number of valence electrons...
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