Chemistry, 10.01.2022 02:50 andy963936
15g of an impure mixture of anhydrous Na2co3 and Nacl were made upto 1dm3 of aqueous solution.20cm3 of this mixture were neutralized by 25cm3 of 0.015moldm3 of HCl aqueous solution, calculate the concentration of B, mass concentration of B
Answers: 2
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Which type of bond is present in hydrogen sulfide (h2s)? the table of electronegativities is given. a. hydrogen b. ionic c. nonpolar covalent d. polar covalent
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Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!
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An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons
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15g of an impure mixture of anhydrous Na2co3 and Nacl were made upto 1dm3 of aqueous solution.20cm3...
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