Now, these bacteria actually combine the hydrogen sulfide with the carbon dioxide, and this chemical reaction is what produces organic material, which is the food for larger organisms. The researchers had never seen anything like it before!MALE STUDENT: Wow! So just add a chemical to a gas, ...
In a chemical reaction, two substances combine to form a new substance. What is this process called? A. decomposition. B. synthesis. C. combustion. D. neutralization. 相关知识点: 试题来源: 解析 B。解析:两种物质结合形成新物质的过程叫做合成。选项 A 分解是一种物质分解成多种物质。选项 C ...
Step-by-Step Solution:1. Understanding Chemical Reactions: - A chemical reaction involves the transformation of reactants into products. It is essential for studying the behavior of substances when they inte
Hey guys, ive been studing for exams and benzidiazepine synthesis comes around. One of the reactions that leads to this kind of compounds is this one. Does anyone has any idea what reaction is it? Does it have a name? What is the mechanism? Seems like a deprotonation of the nitrile and...
Complete and balance the following reaction. What type of reaction is this? {eq}NaCl(aq) + KNO_3(aq) \to {/eq} Predicting a Chemical Reaction: If a new species is formed with different chemical characteristics than the reactants, the corresponding process is...
When iron rusts, it is a chemical change. What happens during this process? A. The color remains the same. B. No chemical reaction occurs. C. A new substance is formed. D. The mass of iron decreases. 相关知识点: 试题来源: 解析 C。铁生锈是化学变化,在这个过程中会形成新物质。A ...
What are chemical reactions?Chemical reaction:-It is a process in which one or more substance are converted to one or more different substances. A chemical reaction rearranges the constituent atoms of reactant to create different substances as products....
Forum Rules: Read This Before Posting Home Search Login Register « previousnext » Print Pages:1[2]Go Down 0 Members and 1 Guest are viewing this topic. Fish200398 Full Member Posts: 148 Mole Snacks: +0/-3 Re: What is the heat energy generated in this reaction?
A. No change in properties. B. Formation of a salt and water. C. Only a physical mixture is formed. D. The acid and base remain unchanged. 相关知识点: 试题来源: 解析 B。酸碱反应是化学变化,会生成盐和水。A 选项性质会改变,错误;C 选项不是物理混合,错误;D 选项酸和碱会发生反应改变,错...
What happens in the chemical reaction in which sucrose is heated? Sucrose: Sucrose is a disaccharide sugar that is commonly used as a sweetener in cooking and beverage preparation. It is made up of the monomers glucose and fructose, which are both six-carbon sugars. ...