When we observe a chemical reaction, we may see bubbles. What does this usually mean? A. a solid is formed B. a liquid is formed C. a gas is formed D. nothing happens 相关知识点: 试题来源: 解析 C。看到气泡通常意味着有气体生成。选项 A 是固体形成;选项 B 是液体形成;选项 D 是没...
Chemical reaction A is represented by the equation: 2H₂ + O₂ = 2H₂O. What does this equation tell us? A. Two hydrogen atoms react with one oxygen atom to form two water molecules. B. Two hydrogen molecules react with one oxygen molecule to form two water molecules. C. Two ...
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Start today. Try it now Create an account Ask a question Our experts can answer your tough homework and study questions. Ask a question Search AnswersLearn more about this topic: Chemical Reaction | Overview & Examples from Chapter 8 / Lesson 1 77K This lesson will cover what happens...
9.Comparedwitheducation,theinfluenceofrace ondeathratesis . A.significant B.unnoticeable C.growing D.long-lasting 10.Whatdoestheunderlinedword“tangible”probably mean? A.Realistic. B.Creative. C.Challenging. D.Temporary. 11.Whatcanbeinferredfromtheresearchfindings? A.Peoplecangetsmartthroughlearning....
What does a chemical reaction do? What are the reactants in a neutralization reaction? What is a precipitate in a chemical reaction? Is mixing salt and sugar a chemical reaction? When hydrochloric acid reacts with sodium carbonate, what gas results?
Some chemistry examples in everyday life include the burning of gasoline (a chemical reaction), sunscreen (chemical that reflect harmful ultraviolet light), and even breathing (the extraction of oxygen gas from the air). What is chemistry in simple words? Chemistry is the study of the substances...
In part (c) you showed that the reaction forms the ortho product. Why is it ortho selective? Thinking about that might help you work out why using KOH can make a difference. Logged mana Full Member Posts: 192 Mole Snacks: +3/-3 Re: What does heat do as a reaction step? « ...
What Does the AP Chemistry Course Cover? AP Chemistry is a wide-ranging course.The curriculum is divided into nine unitsthat encompass long lists of smaller topics.I'll list the units along with the smaller themes within them. There are also seven Scientific Practices that students are expected...
Video: How does sanger sequencing work? Automation of Sanger sequencing has been made possible with the development of a variety of DNA sequencing instruments and platforms; one of the latest innovations is the Applied Biosystems SeqStudio Genetic Analyzer, w...