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.
- Write balanced equations for the following reactions 1. Magnesium ribbon burns in air to produce a white powder. A synthesis reaction. 2. Mg+O_(2)arrow MgO_(2) 3. Al+O_(2)arrow Al_(2)O_(3) vert AAl+BOarrow Z_(2)Al+30 magnesium react to produce hydrogen gas and a magnesium salt 4. Sulfuric acid and zine react to produce hydrogen gas and a zine salt. 5. The action of sulfuric acid on calcium carbonate produces water, a calcium salt and a gas that turns limewater milky. 6. The heating of mercury (II) oxide, HgO, causes it to decompose into its elements. This is an example of a decomposition reaction. 7. The heating of copper carbonate produces carbon dioxide gas and copper oxide 8. Copper oxide reacts with hydrochloric acid to produce a green solution of copper(II) chloride and water. 9. A strip of copper metal when placed in a solution of silver nitrate produces metallic silver and a copper salt. 10. When a solution of silver nitrate comes into contact with a solution of sodium chloride a white precipitate of silver chloride and a solution of sodium nitrate are produced 11. Potassium hydroxide can be used to neutralise a solution of hydrochloric acid. It produces a potassium salt and water. Sodium hydroxide can be used to neutralise a solution of sulfuric acid It produces a salt plus water. 13. Chlorine gas and potassium bromide react to produce potassium chloride and bromine. 14. Aluminum and bromine combine violently to produce a single compound. Sodium reacts violently with water to produce a solution of sodium hydroxide and hydrogen gas 16. Iron (III) oxide when heated in hydrogen produces iron and water. 17. Limewater (calcium hydroxide) reacts with carbon dioxide to produce water and a precipitate calcium carbonate. (calcium carbonate) when strongly heated decomposes into carbon dioxide and quicklime (calcium oxide) 19. Copper oxide and carbon when heated together produce the copper metal and carbon mono 20. Hydrochloric acid and sodium sulfide produce hydrogen sulfide gas and a salt.
- 15. CH_(4)+2O_(2)arrow CO_(2)+2H_(2)O is an example of which type of reaction? a) Synthesis b) Double Replacement c) Combustion d) Single Replacement
- M Test Unit 7 Chemical Reactions to the maction HCl+NaOHarrow NaCl+H_(2)O colleaction? Combuntion
- 20. When writing a chemical equation, reactants are on the __ while products are on the __ a) left, right b) top, bottom c) right, left d) bottom, top
- A chemical substance that is present at the start of a chemical reaction Choose matching term Product Substrate Reactant Catalyst
