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Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
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Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n
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Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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A solution was prepared by adding 9.35 g of phosphoric acid to water had a volume of 8.78 mL. Calcul...
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