In a chemical reaction, if the pressure is increased, what will happen to the reaction rate? A. Decrease B. Remain unchanged C. Increase D. Depend on the reaction 相关知识点: 试题来源: 解析 C。解析:对于有气体参与的反应,增加压力通常会增加反应速率,因为压力增加会使气体分子间距离减小,碰撞...
Problem/solution text structure identifies a problem and makes suggestions for how to fix it. For example, this text structure may appear in social studies texts about current events. An author identifies acurrent problem in government or societyand proposes a solution to fix it. Questions that c...
Neosporin is an antibiotic ointment that helps prevent infections. It’s a good choice for cuts and scrapes, particularly those exposed to dirt or water. The antibiotic properties of Neosporin help prevent the wound from turning into an infection, which can happen if you don’t clean your wound...
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There are two general types of changes, physical and chemical. Both involve energy transfer and changes to the matter. We can determine if a change is physical or chemical based on what exists after the reaction. Answer and Explanation: ...
A.Previousstudiesareinaccurateandunreliable. B.Kids?capacitytoreaddeclineswhentheyapplye-books. C.Kidsplayingvideogamescanperformaswellasbeforeacademically. D.WatchingTVwillhaveanegativeimpactonkidsmerelywithintwoyears. ( )7.Whatmakestheeffectsofmodernmediaonchildren?slearningahotissue? A.Challengesfrompubliche...
1.WhatmakesRomaniadifferentfromtheother places? A.Nicehostels. B.Deliciousfood. C.Less-visitedtowns. D.Cheaptransportation. 2.Whatmaytheauthorrecommendfortravelling inSouthAfrica? A.Driveyourowncars. B.Cookyourownlunches. C.Stayinexcellenthotels. D.Finduniquetravelpartners. 3.Whatfeaturedothefourdestin...
Chemical reactions inherently occur at varying rates. Some occur spontaneously and some require addition of extra energy. There are many factors that influence how fast a reaction will progress if at all. These factors can often be varied to achieve satisfactory production of products from a ...
looks at how matter behaves and how energy is involved in chemical reactions. It combines chemistry with physics to study things like how fast reactions happen, why they occur, and what happens to the energy in the process. This branch helps explain how chemical reactions work on a deeper ...
But as the data shows, mistakes happen pretty often — and sometimes these mistakes can cause costly challenges. The Cost of Running Out of Def In a best-case scenario, running out of DEF simply means refilling the tank and restarting your machine. If you have DEF nearby, you could be...