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Hogar Banco de preguntas Química Archive 2025 January 23

Chemistry Questions from Jan 23,2025

Browse the Chemistry Q&A Archive for Jan 23,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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A chemistry student was asked to make 100 L of alcohol solution by mbing alcohol solution and alcohol solution. How much of each solution must the student use? 1. write down the name of the functional group for the following homologpus series: 1. Define the following terms: 1.1 homologous series 1.2 functional group (2) 2. Write down the structural formula of the functional group for the following homologous series: 2.1 alcohols 2.2 aldehydes (2) 2.3 carboxylic acids (2) 2.4 ketones (2) (2) [14] Define the following terms: 1.1 homologous series 1.2 functional group write down the structural formula of the functional group for the following homologous series: 2.1 alcohols 2.2 aldehydes 2.3 carboxylic acids 2.4 Texexp-314 is an isotope that is decaying each day. Chemists initially have a 289-gram sample. Which of the following equations represents the amount of the isotope remaining after days? 8 Multiple Choice 10 points If the half-life of uranium- 232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g ? 2 half-lives 4 half-lives 3 half-lives 1 half-life What does the atomic number of an atom of an element tell you Question 9 (1 point) Which type of changes are melting, freezing, and boiling? nuclear compound chemical Question 7 (1 point) Which type of change is freezing water into ice an example of? nuclear physical chemical
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