A chemical reaction that releases heat is called an ___ reaction. A. exothermic B.
A. endothermic B. exothermic C. isothermal D. adiabatic 相关知识点: 试题来源: 解析 B。本题考查化学反应的类型。A 选项 endothermic 是吸热的。B 选项 exothermic 是放热的,符合题意。C 选项 isothermal 是等温的。D 选项 adiabatic 是绝热的。反馈 收藏 ...
1The energy ___ by the chain reaction is transformed into heal. A.entrustedB.releasedC.deliveredD.conveyed 2The energy ___ by the chain reaction is transformed into heal. [A] entrusted[B] released[C] delivered[D] conveyed 316. The energyby the chain reaction is transformed into heat....
aheat generation from a chemical reaction can be both positive and negative according to cases where it either releases heat during a discharge or absorbs heat during charging. 发热从一个化学反应可以是正面和阴性根据案件在充电期间,它发布热在放电期间或吸收热。 [translate] ...
Well volumeimpacts choice of both PCR plate and PCR tube. Well volumes of both 0.2 mL (“standard”) and 0.1 mL (“low profile”) are quite common. Low profile consumables have the advantage of using half the reagents pe...
A. heat and light B. water and carbon dioxide C. oxygen and hydrogen D. steel and other metals 相关知识点: 试题来源: 解析 A。解析:文中提到 Combustion is a chemical reaction that releases energy. This reaction releases heat and light.。反馈...
一、根据汉语或首字母提示填空 1.The heat brings about a(化学的)reaction, and oxygen is produced. 2. So far, researchers in this field have made some important new_(发现). 3.The sales department has given a(总结)of the company's sales in Europe for the first six months. 4.The number...
aHowever, heat generation from a chemical reaction can be both positive and negative according to cases where it either releases heat during a discharge or absorbs heat during charging. 然而,发热从一个化学反应可以是正面和阴性根据案件在充电期间,它发布热在放电期间或吸收热。 [translate] ...
C18H12(s)+ O2(g) \longrightarrow CO2(g) + H2O(l) What is the heat of formation of chrysene? What is always true of a combustion reaction? a. water will always be one of the products b. the reaction releases a large amount of energy c. one reactant must contain hydrogen...
When the reaction consumes 10.0 g of liquid N2O4, it releases 124 kJ of heat. What is the value of ?H (in kJ per mole N2O4) for the chemical equation as written? --(2) A reaction that is used to propel rockets is N2O4(l) + 2N2...