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.
- 5.) The following is the start of a double replacement reaction. What would be the products of the reaction? KF+LiBrarrow
- Question 18 Convert 6.7 moles of beryllium oxide to molecules. Answer: square times 10 square power. 14 pts
- Question 1 (2 points) A solubility graph shows the solubility of three substances (A. B, and C) in 100 mL of water at different temperatures. Substance As solubility Increases significantly with temperature while B and C show little change. At60^circ C - A dissolves up to 1009 - 8 dissolves up to 409 - Cdissolves up to 20g If 70 gof Substance A is dissolved in water at 60^circ C and then cooled to 30^circ C, where its solubility is 50 C. which of the following COULD happen to the solution? Column A 1. __ The solution is supersaturated after cooling 2 __ The solution is saturated with 20g of solute undissolved after cooling. 3. __ The solution is unsaturated after cooling 4. __ A crystal is added to the heated solution and rapid crystallization occurs 5. __ A crystal is added to the cooled solution and rapid crystallization occurs. 6. __ The heated solution is saturated 7. __ The heated solution is unsaturated Column B a. Possible b. Not possible
- I. MATCHING TYPE: Match each item in Column A with the correct description in Column B. Write the letter of the correct answer in the blank provided. NO ERASURES. Column A __ 1) Solid __ 2) Liquid __ 3) Gas __ 4) Plasma __ 5) Melting __ 6) Freezing __ 7) Evaporation __ 8) Condensation __ 9) Sublimation __ 10) Deposition __ 11) Thermal Expansion __ 12) Boiling Point __ 13) Heat of Fusion __ 14) Heat of Vaporization __ 15) Water Column B a. State of matter with a definite shape and volume b. Change of state from gas directly to solid C. Change of state from liquid to gas at the surface of the liquid d. State of matter with no definite shape or volume but has high kinetic energy e. Energy required to change a solid to a liquid f. Temperature where a liquid's vapor pressure equals external pressure g. State of matter with no definite shape but a definite volume h. State of matter with extremely high kinetic energy and ionized particles i. Increase in size due j. Change of state from liquid to solid k. Change of state from solid directly to gas I. Substance that can exist in all three common states of matter m. Change of state from gas to liquid n. Change of state from solid to liquid o. Energy required to change a liquid into gas at its boiling point
- How many formula units are in a mole of Mg(OH)_(2) ? (Use 2 decimals, in correct Scientific Notation)Answer: square times 10square power. Each formula unit would contain square atom of magnesium. square atoms of oxygen, and square atoms of
