Sodium chloride, NaCl, contains 39% Na (sodium) and 61% Cl (chloride) by mass. If you have a 150-g sample of NaCl, how many grams of sodium and chloride are there in the sample?
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The process by which green plants make their own food (like glucose) from carbon dioxide and water by using sunlight energy (in the presence of chlorophyll) is called photosynthesis. The leaves of a plant can synthesise food because they contain a green pigment chlorophyll (which is necessary for making food).
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photosynthesis is the process in which green plant use sunlight to make their own food with the help of carbon dioxide
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