Calculate the wavelength of an electron traveling at 2.70×10^7 m/s

1. baking powder is a 1: 1 molar mixture of cream of tartar (khc4h4o6) and baking soda (nahco3). a recipe calls for two teaspoons (a total of 8.0 grams) of cream of tartar. how much baking soda must be added for both materials to react completely?

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How have the greenhouse gasses increased from the year 2000 to 2018