A. products to reactants. B. reactants to products. C. catalysts to reactants. D. products to catalysts. 相关知识点: 试题来源: 解析 B。解析:在化学反应方程式中,箭头是从反应物指向产物。选项 A 方向错误。选项 C 和 D 催化剂不是反应的主要物质,箭头不指向它们。反馈 收藏 ...
Since, Level 3 models do not assume equilibrium conditions, a word about chemical kinetics is in order at this point. Chemical kinetics is the description of the rate of a chemical reaction.13 This is the rate at which the reactants are transformed into products. This may take place by ab...
Evidence of a Chemical Reaction Heat Change. Color change. Light. Solid formed. Gas. Writing Chemical Equations. Hydrogen reacts with chlorine to produce hydrogen chloride. Word Equations Hydrogen + Chlorine → Hydrogen Chloride Formula Equations H2 + Cl2 → HCl Note: Diatomic Molecules: N, O, ...
Classify the following reaction: 3KOH(aq) + H3PO4(aq) arrow K3PO4(aq) + 3H2O(l) Classify the following reaction: Al(OH)3(aq) + 3HCl(aq) arrow AlBr3(aq) + 3H2O(l) Classify the following reaction: Na2S(aq) + 2HCl(aq) arrow 2NaCl(aq) + H2...
reaction arrow — the reactants and products, respectively — contain the same number of each type of atom. This process represents a consequence of the first law of thermodynamics, which states that matter can be neither created nor destroyed. Redox reactions take this process one step further...
Reaction Definitions You can manually define reactants and products, or have ChemDoodle 2D automatically infer reaction components based on their locations around an arrow. Synthesis and Retrosynthesis Tools ChemDoodle 2D contains convenient tools for building reactions based on bond breaking and formation...
Answer to: Identify the type of reaction: a. A + B arrow AB b. A + BC arrow AC + B By signing up, you'll get thousands of step-by-step solutions to...
Chemical Equations - heating When a reaction requires heat, the word ‘heat’ is written above the arrow to denote that heat has been applied. –H 2 O(s) ---> H 2 O(l) Heat Review Complete the sample problems 11.1 & 11.2 page 258 Complete the revision questions 1, 2 page 258 ...
Answer to: Balance the following chemical reaction and state what type of reaction it is. C6H12 + O2 arrow CO2 + H2O By signing up, you'll get...
2.ChemistryAny of various substances, such as litmus or phenolphthalein, that indicate the presence, absence, or concentration of another substance or the degree of reaction between two or more substances by means of a characteristic change, especially in color. ...