# HEMIJSKE REAKCIJE I PROMJENE

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• Reakcija
• Kinematika
• Koncentracija
• Ravnoteža

### Description

Explore what makes a reaction happen by colliding atoms and molecules. Design experiments with different reactions, concentrations, and temperatures. When are reactions reversible? What affects the rate of a reaction?

### Primjeri obrazovnih ciljeva

• Explain why and how a pinball shooter can be used to help understand ideas about reactions.
• Describe on a microscopic level what contributes to a successful reaction (with illustrations).
• Describe how the reaction coordinate can be used to predict whether a reaction will proceed or slow.
• Use the potential energy diagram to determine: The activation energy for the forward and reverse reactions; The difference in energy between reactants and products; The relative potential energies of the molecules at different positions on a reaction coordinate.
• Draw a potential energy diagram from the energies of reactants and products and activation energy.
• Sketch how the number of reactants and products will change as a reaction proceeds.
• Explain how they know that a system has reached equilibrium from a graph of number of reactants and products versus time.
• Predict how raising or lowering the temperature will affect a system in the equilibrium position.
• Describe the relative sizes of the forward and reverse rates at equilibrium.
• Explain what effects whether the equilibrium position favors the products or the reactants.
• Predict how addition of a reactant or product will affect the forward and reverse reaction rates, and once this new system reaches equilibrium how the reactant and product concentrations will compare to the original system at equilibrium.
• Compare graphs of concentration vs. time to determine which represents the fastest or slowest rate.
Version 1.07

### Teacher Tips

 Vodič za nastavnike (pdf) sadrži savjete kreirane оd strane PhET tima. ( PDF ).

### Teacher-Submitted Activities

Concept questions for Physics using PhET (Inquiry Based) Trish Loeblein UG-Intro (VSŠ)
HS (VŠ)
MC Fizika
Using PhET in High School Chemistry- all my activities in pdf Trish Loeblein HS (VŠ)
UG-Intro (VSŠ)
Lab
Demo
DZ
Hemija
Concept Questions for Chemistry using PhET Trish Loeblein MS (SŠ)
HS (VŠ)
UG-Intro (VSŠ)
MC Hemija
Reactions and Rates 4: Equilibrium LeChatlier Trish Loeblein UG-Intro (VSŠ)
HS (VŠ)
Lab
DZ
Hemija
Reactions and Rates 4 lessons (Inquiry Based) Trish Loeblein HS (VŠ)
UG-Intro (VSŠ)
Lab
Demo
DZ
KP
Hemija
Salts and Solubility 5 Activities in pdf Trish Loeblein HS (VŠ)
UG-Intro (VSŠ)
Ostalo Hemija
Nauka o Zemlji
Reactions and Rates 3: Introduction to Equilibrium (Inquiry Based) Trish Loeblein HS (VŠ)
UG-Intro (VSŠ)
Lab
KP
DZ
Hemija
Reactions and Rates 2: Intro to Kinetics (inquiry based) Trish Loeblein UG-Intro (VSŠ)
HS (VŠ)
Lab
DZ
KP
Hemija
Reactions and Rates College version for tab 3- kinetics (Inquiry Based) Trish Loeblein UG-Adv (VSŠ2) Lab Hemija
Reactions and Rates 1 Introduction to reactions (Inquiry Based) Trish Loeblein UG-Intro (VSŠ)
HS (VŠ)
KP
Demo
Lab
Hemija
Exploring Equilibrium 2 (Le Chatelier's Principle) Amy Jordan HS (VŠ) Lab Hemija
Exploring Equilibrium Amy Jordan HS (VŠ) Lab Hemija
Kinetics Guided Inquiry Chris Dewberry UG-Intro (VSŠ) Ostalo
KP
Lab
DZ
Reaction Rates Emily Firchau HS (VŠ) Lab Hemija
Alignment of PhET sims with NGSS Trish Loeblein updated by Diana López HS (VŠ)
MS (SŠ)
Ostalo Biologija
Fizika
Hemija
Nauka o Zemlji
How do PhET simulations fit in my middle school program? Sarah Borenstein MS (SŠ) Ostalo Hemija
Biologija
Nauka o Zemlji
Fizika
PhET Sims Aligned to the Chemistry Curriculum Julia Chamberlain HS (VŠ)
UG-Intro (VSŠ)
Ostalo Hemija
Reactions and Rates: Learning Goals from the design team (Inquiry Based) Trish Loeblein, Linda Koch UG-Adv (VSŠ2)
UG-Intro (VSŠ)
HS (VŠ)
Ostalo Hemija
PREPARATORIA: Alineación de PhET con programas de la DGB México (2017) Diana López HS (VŠ)
UG-Intro (VSŠ)
Ostalo Matematika
Fizika
Hemija
MS and HS TEK to Sim Alignment Elyse Zimmer MS (SŠ)
HS (VŠ)
Ostalo Biologija
Hemija
Fizika
Understanding Rates of Reactions Lauren Petersen MS (SŠ)
UG-Intro (VSŠ)
HS (VŠ)
Guided
Lab
DZ
Hemija
Reactions and Rates Jefferson County Middle School Workshop MS (SŠ) Lab Hemija
LeChateilier's Principle - Concentration Robert Strauss HS (VŠ) Lab
반응과 반응속도 SIM 사용지침서 이화국(Wha Kuk Lee) UG-Intro (VSŠ)
HS (VŠ)
Ostalo
Lab
Demo
Biologija
Hemija
Arapski All العربية التفاعلات وسرعتها(معدلها)
Arapski (Saudijska Arabija) All العربية (السعودية) التفاعلات وسرعتها(معدلها)
Brazilski Portugalski All português (Brasil) Reações e Taxas
Češki All čeština Reakce a ceny
Danski All Dansk Reaktioner og størrelser
Engleski All English Reactions & Rates
Estonski All Eesti Reaktsioonid ja nende hindamine
Francuski All français Réaction et cinétique
Galicijski All Gallegan Reaccións e Rtos
Grčki All Ελληνικά Αντιδράσεις και Ταχύτητα Αντίδρασης
Gruzijski All ქართული რეაქციები და შედეგები
Hebrejski All עברית תגובות וקצבים
Holandski All Nederlands Reacties en reactiesnelheid
Hrvatski All hrvatski Brzina reakcija
Indonežanski All Bahasa Indonesia Reaksi dan Tingkatannya
Italijanski All italiano Reazioni e velocità di reazione
Japanski All 日本語 反応と速度
Kazaški All Kazakh Реакцияның & шамалары
Kineski - Tradicionalni All 中文 (台灣) Reactions & Rates 化學反應和反應速率
Kineski - Uprošćen All 中文 (中国) 化学反应平衡
Kmerski All Khmer ប្រតិកម្ម និង​ល្បឿន
Korejski All 한국어 반응과 반응속도
Makedonski All македонски ХЕМИСКИ РЕАКЦИИ И ПРОМЕНИ
Mađarski All magyar Reakciók: sebesség & egyensúly
Mongolski All Монгол (Монгол) Урвал ба Тооцоо
Njemački All Deutsch Reaktionen & Geschwindigkeiten
Persijski All فارسی واكنش ها و سرعت ها
Poljski All polski Reakcje i ich szybkości
Portugalski All português Reações & taxas
Ruski All русский Скорость реакций
Slovački All Slovenčina Reakcie & Hodnoty
Slovenački All Slovenščina Reakcije in hitrosti reakcij
Španski All español Velocidades de reacción
Španski (Meksiko) All español (México) Velocidades de reacción
Španski (Peru) All español (Perú) Velocidad de las Reacciones
Srpski All Српски ХЕМИЈСКЕ РЕАКЦИЈЕ И ПРОМЕНЕ
Svahili All Swahili majibu ya utendaji
Švedski All svenska Reaktioner & reaktionshastigheter
Taj All ไทย ปฏิกิริยาและอัตราการเกิดปฏิกิริยาเคมี
Turkmenski All Turkmen Reaksiýalar we mukdarlar
Turski All Türkçe Reaksiyonlar & Oranlar
Vijetnamski All Tiếng Việt Phản ứng và tốc độ phản ứng
Windows Macintosh Linux
Microsoft Windows
XP/Vista/7/8.1/10