Launch (5 min silent) 1. Take out your unit 4 study guide. 2. Look through LT 4.12-4.20 and circle the problems you don’t know how to do or did not understand. 3. Check through problems on answer key. Those are the videos you need to watch! 4. On the center aisle is the answer key for LT 4.12 -4.20 On the front page of the answer key, write down Class Set Answer Key Objective I will be able to demonstrate my mastery of chemical reactions Agenda Study Guide Practice 2. Jeopardy *Unit 4 Exam is this Thursday AND Friday 1. Study Guide Practice (20 min) 1. 2. 3. Look through answer key and compare with your study guide answers Watch LT videos on the chromebook for extra practice Then we will play jeopardy Expectations: Only chemistry Both partners are responsible for the answer Talking only loudly enough for your partner to hear you Your board must be up before the song ends! Keep your own score in the top right corner Names Score Chemistry Jeopardy Whack-O-Mole Chew With Your Molars Balancing Act Do the 2- Step Grams to Grams 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50 Write the definition of a mole. How many “objects” are in one mole of something? You have a sample of an element that’s mass is double it’s molar mass. How many moles do you have? H2O Al(NO3)3 Name one difference and one similarity between 1 mole of each of these compounds. Why do we use the mole as a unit? Define the molar mass. Calculate the molar mass of Helium and the molar mass of Lithium. What is their sum? What is the molar mass of K2Br? What is the molar mass of C6H12O6 ? What is the molar mass of Hydronium Sulfide? Balance this reaction: __CH4 + __Cl2 → __HCl + __CCl4 Balance this reaction: _Zn + _NaOH + _H2O → _Na2Zn(OH)4 + _H2 Balance this reaction: _C4H10O + _O2 _CO2 +_H2O Balance this reaction: Bottom _C2H6 +L _O2→_CO + _H O 2 R Alkaline Earth Metals Top Balance this reaction: Lead (II) Nitrate reacts with aluminum chloride to form lead (II) Chloride and Aluminum Nitrate How grams are there in 16.6 moles of Al(OH)3 ? How many moles Xenon are contained in 1.04 X 1024 molecules? Insertmoles Text forare Question How many contained in 70.5 g of SOF2? How many molecules contained The nucleus has a _____are mass, in 40.0 volume, grams ofand C2is H3therefore OH? _____. a ____ 23 10 What is the mass of 4.00 x molecules of Carbon Monoxide? How many grams of AuCl3 can be made from 142.0 grams of chlorine gas (Cl2) by this reaction: 2 Au + 3Cl2 2AuCl3 How many grams of Cl2 are required to react completely with 46.0 grams of Sodium using this reaction: 2Na + Cl2 2NaCl Calculate the mass of AgCl that can be prepared from 200.0 g of AlCl3 and excess AgNO3, using this equation: 3 AgNO3 + AlCl3 --> 3AgCl + Al(NO3)3 . The reaction N2 + 2H2 2NH3 is used to produce ammonia commercially. If1.40 g of N2 are used in the reaction, how many grams of H2 will be needed? In a chemical reaction, Aluminum metal reacts with iron (III) oxide to form iron metal and aluminum oxide. What mass of Al will react with 150. g of Fe2O3? Final Jeopardy Calcium phosphide reacts with water to form calcium hydroxide and phosphorus trihydride. How many grams of phosphorus trihydride can be formed if we react 60.0 grams of calcium phosphide? Closing Unit #4 Exam Friday! Second half to answers to study guide posted tonight! Sleep! Study! Check dantzkerquanlps.weebly.com materials for answer keys and practice problems.