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19.The polymer used for the nonstick surface of cooking utensils is 24.0% C and 76.0% F by mass. What is the empirical formula of this polymer
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The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?
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How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process
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Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that
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19.The polymer used for the nonstick surface of cooking utensils is 24.0% C and 76.0% F by mass. Wha...
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