Chemical Reactions

Chemical Reactions Objectives 1.Classify and name compounds in chemical reactions 2.Describe chemical reactions in word and chemical equations. 3.Balance chemical equations based on the Law of Conservation of Mass. 4.Identify and classify types of chemical reactions. 5.Predict products in a chemical reaction. 6. Predict single replacement reactions using the activity series table.

Chemical Reactions: 2.29.16 I can identify and interpret substances in a chemical reaction. I can balance chemical reactions.

Counting Atoms in a Chemical Formula

Chemical Reactions: Bell Ringer Ba(NO3)2 + NaF ------> BaF2 + NaNO3 What is the chemical name of one of the products? Identify the type and amount of atoms in each of the reactants: Ba(NO3)2 and NaF c. What does the arrow represent in the reaction?

Chemical Reactions: 3.02.16 Due: Counting Atoms Packet Law of Conservation of Mass Article Infinite Campus: Chemical Nomenclature Exams (27pts.) Objectives: I can identify and interpret substances in a chemical reaction. I can balance chemical reactions.

Balancing Chemical Reactions https://en.wikipedia.org/wiki/Antoine_Lavoisier

Chemical Reactions: 3.03.16 Due: Law of Conservation of Mass Article Objectives: I can identify and interpret substances in a chemical reaction. (Quiz) I can balance chemical reactions.

Balancing Chemical Equations *Why must chemical equations be balanced? Rules: 1. Add coefficients in front of substances, do NOT change subscripts. 2. First balance elements that only appear once on each side of the equation. 3. Make sure coefficients are expressed in lowest terms.

Balancing Chemical Reactions https://en.wikipedia.org/wiki/Antoine_Lavoisier

Chemical Reactions: 3.04.16 I can balance chemical reactions. Due: Balancing Chemical Equations Worksheet Objectives: I can balance chemical reactions. I can classify chemical reaction (5 types)

Balancing Chemical Reactions https://en.wikipedia.org/wiki/Antoine_Lavoisier

Balancing Chemical Equations *Why must chemical equations be balanced? Rules: 1. Add coefficients in front of substances, do NOT change subscripts. 2. First balance elements that only appear once on each side of the equation. 3. Make sure coefficients are expressed in lowest terms.

Chemical Reactions: 3.06.16 I can balance chemical reactions. Due: Balancing Chemical Equations Worksheet Objectives: I can balance chemical reactions. Conservation Lab I can classify chemical reactions (5 types)

Types of Chemical Reactions There are five main types of chemical reactions: Synthesis Decomposition Single Replacement (Displacement) Double Replacement (Displacement Combustion Research and complete table on each reaction Classify reactions from Balancing Worksheet

Conservation Of Mass Lab Purpose: Prove that mass is conserved during chemical reactions. Procedures: Will run two trials and record data from each trial in table. https://en.wikipedia.org/wiki/Antoine_Lavoisier

Chemical Reactions: 3.08.16 I can balance chemical reactions. Due: Types of Chemical Reaction Table Objectives: I can balance chemical reactions. I can prove that Mass(matter) is Conserved I can classify chemical reactions (5 types)

Conservation of Mass: Class Analysis 2nd Lab Group Mass Difference Trial 1 (grams) Trial 2 (grams) Average Mass Difference 1 2 3 4 5 6 7 8 9 10

Conservation of Mass: Class Analysis 3rd Lab Group Mass Difference Trial 1 (grams) Trial 2 (grams) Average Mass Difference 1 2 3 4 5 6 7 8 9 10

Conservation of Mass: Class Analysis 6th Lab Group Mass Difference Trial 1 (grams) Trial 2 (grams) Average Mass Difference 1 2 3 4 5 6 7 8 9 10

Conservation of Mass Lab Data: b. What qualitative observations did you observe that indicated a chemical reaction occurred? Explain why the bag expanded as the chemical reaction occurred. Conclusion: Extension Question about Class’s Data *What did the class’s data indicate about the Law of Conservation of Mass?

Conservation of Mass Lab Data: b. What qualitative observations did you observe that indicated a chemical reaction occurred? Explain why the bag expanded as the chemical reaction occurred. Conclusion: Extension Question about Class’s Data *What did the class’s data indicate about the Law of Conservation of Mass?

Chemical Reactions: 3.09.16 I can balance chemical reactions. Due: Balancing and Classifying Chemical Reactions Wksht. Objectives: I can balance chemical reactions. I can prove that Mass(matter) is Conserved I can classify chemical reactions (5 types) *Quiz Tomorrow over Balancing and Classifying

Conservation of Mass Lab: Extension Question Why did you get a mass difference value greater than 0? If you got zero mass difference, why did you get a zero difference, because it is very hard to achieve that value in our classroom? 2. If you could repeat this experiment, explain what you would do differently to improve your results?

Types of Chemical Reactions There are five main types of chemical reactions: Synthesis Decomposition Single Replacement (Displacement) Double Replacement (Displacement Combustion Research and complete table on each reaction Classify reactions from Balancing Worksheet

Types of Chemical Reactions Synthesis (R+ S ----> RS) 2. Decomposition (RS------> R+ S) 3. Single Replacement (T+ RS ---> TS + R) 4. Double Replacement (R+S- + T+U- ---> R+U-+ T+S-) 5. Combustion (CxHx + O2 ----> CO2 + H2O)

Chemical Reactions: 3.10.16 I can balance chemical reactions. Due: Balancing and Classifying Chemical Reactions Wksht. Objectives: I can balance chemical reactions. I can classify chemical reactions (5 types) Balancing and Classifying Reactions Quiz Chemical Reaction Lab

Classification and Balancing

Chemical Reactions From Lab Balancing and Classifying Quiz Balance and Classify Chemical Reactions From Lab Mg + O2 ------> MgO Mg + HCl ----> MgCl2 + H2 (NH4)2(CO3) -----> NH3 + CO2 + H2O Ca(CO3) + HCl ----> CaCl2 + H2O + CO2 Zn + CuCl2 ----> ZnCl2 + Cu CuCl2 + Na3(PO4) ---> Cu3(PO4)2 + NaCl HCl + Na(OH) ----> H2O + NaCl C2H6O + O2 -----> CO2 + H2O

Chemical Reactions: 3.10.16 Balancing and Classifying Reactions Quiz Due: Balancing and Classifying Chemical Reactions Wksht. Objectives: Balancing and Classifying Reactions Quiz Chemical Reactions Lab

Chemical Reactions: 3.14.16 Balancing and Classifying Reactions Quiz Due: Balancing and Classifying Chemical Reactions Wksht.-late Objectives: Balancing and Classifying Reactions Quiz Chemical Reactions Lab-complete/analyze

Chemical Reaction Lab Purpose: Observe and record evidence of chemical reactions(chemical changes) in the lab. Data: Your data is qualitative, so be very descriptive of what you observe through your senses.

Chemical Reactions: 3.15.16 Balancing and Classifying Reactions. Objectives: Balancing and Classifying Reactions. Chemical Reactions Lab-complete/analyze Predicting Products in a Chemical Reaction

Types of Chemical Reactions

Chemical Reactions: 3.16.16 Balancing and Classifying Reactions. Objectives: Balancing and Classifying Reactions. Chemical Reactions Lab-complete/analyze Predicting Products in a Chemical Reaction

Chemical Reactions From Lab Balancing and Classifying Quiz Balance and Classify Chemical Reactions From Lab Mg + O2 ------> MgO Mg + HCl ----> MgCl2 + H2 (NH4)2(CO3) -----> NH3 + CO2 + H2O Ca(CO3) + HCl ----> CaCl2 + H2O + CO2 Zn + CuCl2 ----> ZnCl2 + Cu CuCl2 + Na3(PO4) ---> Cu3(PO4)2 + NaCl HCl + Na(OH) ----> H2O + NaCl C2H6O + O2 -----> CO2 + H2O

Chemical Reactions: 3.17.16 Balancing and Classifying Reactions. Objectives: Balancing and Classifying Reactions. Chemical Reactions Lab-complete/analyze Predicting Products in a Chemical Reaction

Single Replacement Reactions Use the table below to explain why some single replacement reactions do not occur. 2Na + CaCl2 ----> Ca + 2NaCl Cu + KCl ------> No Reaction(NR)

Predicting Single Replacement Reactions An Activity Series can help us predict if a single replacement reaction will take place.

Chemical Reactions: 3.20.16 Due: Predicting Single Replacement Reactions Worksheet Chemical Reaction Study Guide Objectives: I can predict single replacement reactions using the activity series table. Chemical Reactions Review

Activity Series Lab Hypothesis CuCl2(aq) Copper (II) chloride Ag(NO3) (aq) Silver nitrate *HCl (aq) Hydrochloric acid H2O (l) (d)deionized water Copper (s) Cu(s) + CuCl2(aq) ---> Cu(s) +Ag(NO3)(aq)--> Cu(s) + *HCl(aq)---> Cu(s) + H2O(l)---> Magnesium (s) Mg(s) + CuCl2(aq)---> Mg(s) +Ag(NO3)(aq)--> Mg(s) + *HCl(aq)---> Mg(s) + H2O(l)---> Calcium(s) Ca(s) + CuCl2(aq)----> Ca(s) +Ag(NO3)(aq)---> Ca(s) + *HCl(aq)---> Ca(s) + H2O(l)--->

Activity Series Lab Hypothesis CuCl2(aq) Copper (II) chloride Ag(NO3) (aq) Silver nitrate *HCl (aq) Hydrochloric acid H2O (l) (d)deionized water Copper (s) Cu(s) + CuCl2(aq) ---> Cu(s) +Ag(NO3)(aq)--> Cu(s) + *HCl(aq)---> Cu(s) + H2O(l)---> Magnesium (s) Mg(s) + CuCl2(aq)---> Mg(s) +Ag(NO3)(aq)--> Mg(s) + *HCl(aq)---> Mg(s) + H2O(l)---> Calcium(s) Ca(s) + CuCl2(aq)----> Ca(s) +Ag(NO3)(aq)---> Ca(s) + *HCl(aq)---> Ca(s) + H2O(l)--->

Predicting Single Replacement Reactions An Activity Series can help us predict if a single replacement reaction will take place.

Chemical Reaction Review

Predicting Single Replacement Reactions 1. Determine which single replacement reactions below can occur using your Activity Series diagram. If occurs, predict products and balance the equation, if needed. K + MgCl2 Al + Li3(PO4) Sn2+ + *HCl Ca + H2O e. FeCl3 + F2