Chemical Reaction by Grace Kahl https://padlet.com/23kahlg/u9lfum5id7d Amy Theilen and Grace Kahl en-us 2017-11-03 14:38:15 UTC 2025-12-06 11:54:00 UTC hello@padlet.com How can changes in matter be described? 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/204471710 2017-11-07 17:17:42 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/204471710 Chemical Reactions 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/204472425 2017-11-07 17:18:52 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/204472425 physical Reactions 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/204472502 2017-11-07 17:18:59 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/204472502 Definition: 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/204474396 a change that happens when two or more substances come together to make a new substance]]> 2017-11-07 17:21:43 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/204474396 Definition: 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/204474462 Change in the physical properties of a substance usually reversible  ]]> 2017-11-07 17:21:50 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/204474462 Examples 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/204899865 This video show different kinds of chemical reactions

]]> 2017-11-08 16:22:32 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/204899865 Examples 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/204902745 This video shows different kinds of physical reaction]]> 2017-11-08 16:26:41 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/204902745 How can you tell a chemical reaction has occurs? 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/204916684 2017-11-08 16:48:28 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/204916684 Some signs of chemical reaction 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/204920490 Production of an odor, change of temperature, change of color, and formation of bubbles.]]> 2017-11-08 16:54:28 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/204920490 the differences between endothermic and exothermic reactions 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/204936257 2017-11-08 17:19:52 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/204936257 what happen? 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/205754799 This video shows that some physical changes are heating ice, cooling water, heating  crystals of cobalt chloride, cutting cloth, and evaporation.

]]> 2017-11-10 16:47:42 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/205754799 Endothermic Reaction 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/205755025 A process or reaction that absorbs energy from its surroundings (opposite of exothermic reaction)]]> 2017-11-10 16:48:23 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/205755025 Examples of Endothermic Reactions 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/205755725 Photosynthesis, cooking an egg, baking bread, melting a ice cube]]> 2017-11-10 16:50:30 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/205755725 What happen? 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/205756051 This video shows that some chemical reaction like explosion, change of color, expands, burn, grows, gets smaller, bubbles, and gives off light.]]> 2017-11-10 16:51:26 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/205756051 Exothermic Reaction 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/205758236 A chemical reaction releases energy by heat or light (opposite of endothermic)]]> 2017-11-10 16:57:57 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/205758236 Examples of Exothermic Reaction 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/205759106 A candle flame, making an ice cube, rusting iron, forming of snow in clouds]]> 2017-11-10 17:00:58 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/205759106 What is a chemical equation? 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/206352559 2017-11-13 17:00:21 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/206352559 Definition 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/206353859 A chemical equation is the written process of what occurs during a chemical reaction]]> 2017-11-13 17:02:23 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/206353859 Examples 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/206357051
carbon dioxide]]> 2017-11-13 17:07:49 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/206357051 Key Terms 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/206359649 Reactant - The starting materials in a chemical reaction
Product - The compounds produced by a chemical reaction
Coefficient - A constant when an algebraic term is multiplied
Subscripts - ]]> 2017-11-13 17:12:01 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/206359649 What is the Law of conservation of Mass? 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/206825732 2017-11-14 16:47:53 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/206825732 Definition 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/206826789 In a closed or isolated system, matter cannot be created or destroyed. It can change forms but is conserved.]]> 2017-11-14 16:49:23 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/206826789 How does it relate to chemical reactions? 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/206827286 It states that the mass of a chemical reaction is the same as them mass of the reactants. It also states that matter can't be created or destroyed in a chemical reaction]]> 2017-11-14 16:50:05 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/206827286 Examples 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/206829537 Like fire the wood turns into ash so the mass is not destroyed]]> 2017-11-14 16:53:25 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/206829537 Sources 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/206830697  1)Thesaurus by Merriam-Webster: More Than Synonyms and Antonyms. (n.d.). Retrieved November 14, 2017, from https://www.merriam-webster.com/thesaurus 
2)Endothermic vs. exothermic reactions. (n.d.). Retrieved November 14, 2017, from https://www.khanacademy.org/test-prep/mcat/chemical-processes/thermochemistry/a/endothermic-vs-exothermic-reactions
3)How does the Law of Conservation of Mass apply to a burning candle?  . (n.d.). Retrieved November 14, 2017, from https://www.enotes.com/homework-help/how-does-law-conservation-mass-apply-burning-603334
4)“The Common Types of Chemical Reactions.” Dummies, www.dummies.com/education/science/chemistry/the-common-types-of-chemical-reactions/.
5)Helmenstine, Ph.D. Anne Marie. “What Is the Law of Conservation of Mass?” ThoughtCo, www.thoughtco.com/definition-of-conservation-of-mass-law-604412.
6)(n.d.). Retrieved November 14, 2017, from http://www.chemteam.info/Equations/Meaning-of-Equation.html
7)Chapter 2: chemical reactions. (n.d.). Retrieved November 14, 2017, from https://quizlet.com/79766875/chapter-2-chemical-reactions-flash-cards/
8)Helmenstine, P. A. (n.d.). What Is a Chemical Equation? Heres How to Read and Write One. Retrieved November 14, 2017, from https://www.thoughtco.com/what-is-a-chemical-equation-604026
9)(n.d.). Retrieved November 20, 2017, from http://study.com/academy/lesson/decomposition-reaction-definition-examples-quiz.html
]]> 2017-11-14 16:55:05 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/206830697 What is a balanced chemical equation? 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/207301310 2017-11-15 16:50:58 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/207301310 Examples 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/207302601 Fe2O3 + 3 C → 4 Fe + 3 CO2
 
Ba3N2 + 6 H2O → 3 Ba(OH)2 + 2 NH3

CaCl2 + 2 Na3PO4 → Ca3(PO4)2 + 6 NaCl

FeS + 7 O2 → 2 Fe2O3 + 4 SO2 

These equations are balanced because they all have the same numbers of atoms on each side.
]]> 2017-11-15 16:52:54 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/207302601 Definition 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/207303148 The mass and the charge are balanced on both sides of the equation.
 ]]> 2017-11-15 16:53:44 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/207303148 Video 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/207305443 This video shows how to count the atoms in a chemical equation and definition to all the words you need to know to find the numbers of atoms.]]> 2017-11-15 16:57:12 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/207305443 What are the 4 types of chemical reaction? 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/208204414 2017-11-17 17:04:53 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/208204414 Synthesis 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/208207147 The production of chemical compounds by reaction from simpler materials ]]> 2017-11-17 17:10:21 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/208207147 Decomposition 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/208207219  
 A chemical reaction where a single compound breaks down into two or more elements or new compounds. Often involves an energy source such as heat, light, or electricity.
]]> 2017-11-17 17:10:29 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/208207219 Video 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/208209632 This video is about a watermelon decomposing. Heat is the energy source that is decomposing the watermelon.]]> 2017-11-17 17:15:13 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/208209632 Single Replacement 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/208209832  type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound. ]]> 2017-11-17 17:15:41 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/208209832 Double Replacement 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/208210682  A type of chemical reaction where two compounds react. The positive ions and the negative ions of the two reactants switch places, forming two new compounds or products.]]> 2017-11-17 17:17:24 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/208210682 Video 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/208800795 This video show s an example of double replacement. The two chemical in the video makes bubbles]]> 2017-11-20 17:01:03 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/208800795 Video 23kahlg https://padlet.com/23kahlg/u9lfum5id7d/wish/208897102 The reaction in this video 1 minute and 30 seconds. During the reaction 02 and Mg combine in the air to make a new compound, MgO. They give off light and heat during the reaction.]]> 2017-11-20 21:07:31 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/208897102 Video 23theilena https://padlet.com/23kahlg/u9lfum5id7d/wish/208897263 In the Video this shows a metal rod turn to rust and the water turn blue ]]> 2017-11-20 21:08:15 UTC https://padlet.com/23kahlg/u9lfum5id7d/wish/208897263