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Chemistry, 28.10.2020 21:10 hdamelis30
Fill in the blank: The units Hertz (Hz) is used to express . options: wave period wavelength amplitude frequency
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The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 β naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
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What is happening when the water inside a kettle heats up and begins to boil
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