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Which of the following is evidence for a chemical change? A) a substance melts B) an element easily breaks C) an element can be cut into tiny pieces D) an insoluble substance forms after combining two solutions
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As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary
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Particles vibrate in a rigid structure and do not move relative to their neighbors.
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Which electron configuration represents the electrons in an atom of sodium in the ground state at stp
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Which of the following is evidence for a chemical change? A) a substance melts B) an element easily...
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