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.
- Why is a protective apron or lab coat important to use when working with acids? Acids conduct electricity and contact could cause a shock Acids react with lipids and can cause damage to skin tissue. Acids break down fabrics and can cause burns if the acids are strong Acids have a slippery feel and could result in a fall
- Is this equation endo- or exo -thermic? 2KNO3(s)+energy- gt 2KNO2(s)+O2 endothermic exothermic
- For the reaction 2H_(2)(g)+O_(2)(g)arrow 2H_(2)O(g) the bond enthalpies (inkJ/mol) are H-H=x,O=O=y,O-H=z Which calculation will give the value, in kJ/mol, of Delta H for the reaction? 4z-2x-y 2z-2x-y 2x+y-4z 2x+y-2z
- Avogadro's Law (V_(1)/n_(1)=V_(2)/n_(2)) 11. A gas sample contains 2.0 moles and occupies 44.8 L. How much volume would it occupy if the number of moles increases to 4.0 moles? 12. A gas occupies 11.2 L with 0.5 moles of gas. How many moles would be required to expand it to 44.8 L? 13. A balloon with 3.0 moles of gas has a volume of 67.2 L. What is the new volume if the number of moles are increased to 6.0 moles of gas? 14. If a gas sample with 4.0 moles occupies 89.6 L, how many moles would be present in 22.4 L? 15. A gas has a volume of 33.6 L when it contains 1.5 moles. What is the volume if the amount of gas is reduced to 0.5 moles?
- A compound that releases hydrogen ions in solution would most likely have which chemical property? It would react with metals to form a salt and water It would react with nonmetals to form a salt and water. It would react with metals to form hydrogen gas It would react with nonmetals to form hydrogen gas
