1. the indicator used to measure the pH of the solution.2. In the reaction of zinc with clohidric acid, continuous air bubbles escape.3. If a metal bar is heat, it will be dilated.4. The temperature as well as pressure to significantly influence the process triggered response5. Ethanol fires in the air with a green flame, do not smoke and not visible under regular light.6. is the catalyzed substrates that increase the speed of chemical reactions but it doesn't suffer from chemical transformations.7. liquid-vapor equilibrium Line is the graph of the liquid's vapor pressure as a function of temperature.8. The concentration of H + in each other the pH value 10 times the value of Ph.9. Hydrochloric Acid reacts with the metal stand before Cu in the metal's chemical operations to release the gas hiđro.10. Covalent links affected by electronegativity of atoms to create links.11. Conditions of temperature and pressure at which the water phase from liquid to vapour is 1000C and 1 atm.12. The concentration of H + ions in solution, the pH value of the solution as small and vice versa.13. An alloy is a mixture of metals that have different properties than the properties of the component element.14. In general, a metal can push a metal any weaker than in the chemical activity of metals: metal ion reduction of metal stronger than15. Aluminum is a good conductor and metal rolling into new shapes16. the chlorine atoms have 17 electrons, in which the number e in the valence shell is 7. So easy to get more chlorine a e to achieve sustainable e-like configuration of rare gases. Ion creates are called anions and carry electric charge is 1-.17. the acid-base reaction is an exothermic reaction.18. Chemistry still rely on fossil fuel resources is mainly, but these are non-renewable resources are and so can be exhausted. The request for the chemist is to find out the sources of raw material renewable, non-toxic and environmentally friendly.19. Covalent links are divided into polar covalent bonding and covalent bonding does not polarize.20. When dipped in a solution of acid pH paper, pH paper red gold moved from.21. If you study hard, you will have many opportunities to become a chemical engineer proficient! If you dare to experience, you'll have many opportunities to accumulate the knowledge and social skills needed for life. So be strong and hard because I was the youth of the new era!22. I need English to communicate with the Vietnamese! But the new society needs good English to Vietnamese people can integrate with the world!
đang được dịch, vui lòng đợi..