Chemical Reaction — Definition & Overview
Read this topicExplanations 5
- Definition of a Chemical Reaction A chemical reaction is any process that changes the chemical composition of one or more substances. The change in bonds that join elements in a…
By Aaron Lauer, Deena Hauze, Mario Janakis, Valeri Natole, Cassie Gates
- Chemical Reactions in Biology A chemical reaction is a process that changes or transforms one type of chemical into another. The key idea is that the bonds connecting atoms are …
By Deena Hauze, Alex Federspiel, Mario Janakis, Valeri Natole, Cassie Gates
- What Is a Chemical Reaction? It is a reaction which occurs when a molecule experiences a chemical change, rather than a physical change. This means that it has a different chemi…
By Hannah Bonville, Alex Federspiel, Deena Hauze, Mario Janakis, Cassie Gates
- Reactants and Products A+B→C+DA+B\rightarrow C+DA+B→C+D A generic chemical reaction\textit{A generic chemical reaction}A generic chemical reaction A chemical reaction\color{#3DB…
By Jasper Brown, Mario Janakis, Valeri Natole, Gabi Slizewska, Cassie Gates
- (Video) What Triggers a Chemical Reaction? by Kareen Jarrah via TED-Ed What do rotten bananas and a freshly-baked cake have in common? The answer: Chemical reactions\color{#8925…
By Valeri Natole, Mario Janakis, Cassie Gates, Gabi Slizewska
Problems 31
- What is created in a chemical reaction?
- What are the ingredients in a chemical reaction called?
- What must be conserved in a chemical reaction?
- Which statement below is true?
- Which of the statements below is not true?
- The image above shows an electrolysis reaction involving water. What kind of reaction is this?
- What type of reaction is the formation of lophine?
- What kind of reaction is pictured above?
- Which of the following is NOT a chemical reaction?
- Which are the reactants?
- What are the products?
- Carefully examine the reaction plot above. Which of the following statements about this reaction is true?
- Which of the following options is not a class of chemical reaction?
- Carefully examine the plot shown above for the chemical reaction. Which of the following statements about the reaction is false?
- Carefully examine the reaction diagram above. Select the best labels for the numbered parts of the diagram.
- The chemical reaction above is an example of a biological reaction. Enzymes in your body convert the complex sugar lactose into the simple sugars galactose and glucose. Which of…
- Which of the following options is the best example of a decomposition reaction?
- Plants produce their own food through a chemical reaction called photosynthesis. What are the reactants used in this biological process?
- How does the addition of an enzyme impact the chemical reaction in the diagram above? Select all that apply
- Which of the following statements about chemical reactions is true?
- If reaction 1 and 2 proceed as below, A→B+CB→D\begin{align}\color{red}{A} &\rightarrow\color{blue}{B}+\color{green}{C}\\ \color{blue}{B} &\rightarrow\color{maroon}{D}\end{align}…
- Amino acids come together to form peptides in a process called dehydration synthesis. Based on this name, and the fact that a bond is formed between a carbon and a nitrogen, wha…
- When put into water, sulfuric acid will deprotonate and form hydrogen sulfate. H2SO4→H++HSO4−H_{2}SO_{4}\rightarrow H^{+}+HSO_{4}^{-}H2SO4→H++HSO4− Which type of reaction is …
- Ammonia is a weak base. When it is added to water, it steals a proton and forms ammonium and hydroxide. NH3+H2O→NH4++OH−NH_{3} + H_{2}O \rightarrow NH_{4}^{+} + OH^{-}NH3+H2O→…
- Decarboxylation is the process through which a carboxylic acid produces carbon dioxide. As it is depicted above with butyric acid, which type of reaction is decarboxylation?
- Which is not a valid chemical reaction?
- Consider the reaction below, AiH2+N2→2iNH3A\phantom{i}H_{2}+N_{2}\rightarrow 2\phantom{i}NH_{3}AiH2+N2→2iNH3 What value of AAA balances this reaction?
- Consider the reaction below, CH4+H2O→CO+3XCH_{4}+H_{2}O\rightarrow CO+3XCH4+H2O→CO+3X What chemical should XXX be in order to balance this reaction?
- Consider the reaction below, Li2O→2X+O2−Li_{2}O\rightarrow 2X+O^{2-}Li2O→2X+O2− What is the charge on XXX?
- Select the true statements about chemical equations
- You heat up a pan of water, and begin to observe a thick, white gas coming off. What type of chemical reaction is going on?