Ayuda con la tarea de química

El solucionador de problemas de química de QuetionAI es una herramienta de tutoría de química para escuelas secundarias que puede resumir reacciones y ecuaciones químicas clave para los usuarios en tiempo real y tiene un potente sistema de aprendizaje para que incluso los estudiantes con una base débil puedan dominar la química fácilmente..

Ya no tendrás que preocuparte por las propiedades elementales de la tabla periódica. Aquí podrás acceder fácilmente a las reacciones químicas y principios de reacción correspondientes a cada elemento. Deducir la estructura original de moléculas y átomos a partir de los fenómenos macroscópicos que se pueden observar es una técnica de investigación química que siempre hemos defendido.

DDT Is a chemica that was banned from use 50 years ago, but is found in glacier runolf today. Glacier runoff occurs in the summer when precipitation falls on glaciers. Which of the following best explains why is it important that officials continue to monitor environmental parameters affect by DOT? to ensure that DDT is not in use to determine the impact of DDTon the health of Individuals to determine long lasting effect of DDT on biodiversity to evaluate how long it takes for DDT to breakdown in an ecosystem Multiple Choice 4 points

What percentage of the total atomic mass of calcium nitrate (Ca(NO_(3))_(2)) is composed of nitrogen?? Hint - another way to think of calcium nitrate is Ca(NO_(3)) (NO_(3)) 29% 17% 24% 59%

5. Which of the following are incorrect element symbol/ name combinations? a Kr=krypton b. S=silicon C. Ne=neon d. Se=selenium

Given the equation for the decomposition of hydrogen peroxide, 2H_(2)O_(2)... O_(2)+2 H_(2)O, a student sets up a problem to convert from 63.4 grams of hydrogen peroxide to the mass of oxygen produced. Most of the setup is shown below. What is the final conversion factor? 63.4gH_(2)O_(2)times 1molH_(2)O_(2)times 1molO_(2)times 34.02gH_(2)O_(2) 2molH_(2)O_(2) 1molH_(2)O_(2) 1molO_(2) 32.00gO_(2) 1molO_(2) There isn't one - the problem is completely set up. 16.00gO_(2) 1molO_(2)

Lithium phosphide (three lithium atoms with one phosphorus atom)has a chemical formula of Li_(3)P. If you look at the total atomic mass of Li_(3)P does Jithium or phosphor Scroll More b more of it is impossible to tell they are exactly the same phosphorus lithium