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Hogar Banco de preguntas Química Archive 2025 January 24

Chemistry Questions from Jan 24,2025

Browse the Chemistry Q&A Archive for Jan 24,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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What element is being shown in the absorption spectrum? zinc krypton cadmium What element is being shown in the absorption spectrum? zinc hydrogen cadmium Question 1 In a titration experiment, of (aq) was required to completely react with 25.0 of NaOH (aq) containing 2.00 g of the alkali in of solution. a. Write a balanced equation for the reaction. b. Calculate the concentration of: i. in moldm What element is being shown in the absorption spectrum? zinc cadmium krypton What element is being shown in the absorption spectrum? zinc cadmium hydrogen 16- The value of at rate rule of reaction :- Determine the number of significant figures in the measurement 0.000450 s . Express your answer numerically as an integer. View Available Hint(s) Submit The mass changes with the ejection of a neutron. The ejection of a proton changes the element. The atom becomes neutral because it loses a proton and electron. An ion forms when the electron is ejected. Complete the following calculations and type your answers into the boxes. In a volumetric flask, 4 g of NaCl is dissolved in of water. 1. Calculate the amount of NaCl dissolved in water. mol of NaCl is dissolved in water. 2 Calculate the concentration of NaCl in the solution. The solution has a NaCl concentration of Ta toz
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