Avogadro’s number - Study guides, Class notes & Summaries

Stoichiometry Answer Key chem Vocabulary: Avogadro’s number, balanced equation, cancel, coefficient, dimensional analysis, molar mass, mole, molecular mass, stoichiometry Prior Knowledge Questions (Do these BEFORE using the Gizmo.) [Note: The purpose of these questions is to activate prior knowledge and get students thinking. Students are not expected to know the answers to the Prior Knowledge Questions.] 1. A 250 mL glass of orange juice contains 22 grams of sugar. How much sugar...

CHAPTER 3: Chemical Foundations: Elements, Atoms, and Ions 1. What is the most abundant element on the Earth (including the crust, oceans, and atmosphere)? A. silicon B. oxygen C. hydrogen D. iron E. carbon ANS: B PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013 2. What is the most abundant element found in the human body? A. oxygen B. water C. hydrogen D. calcium E. carbon ANS: A PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013 3. The symb...

Chapter 3—Electronic Structure and the Periodic Law MULTIPLE CHOICE 1. 2. 3. 4. 5. 6. 7. 8. 9. Which of the following elements is found in the same period of the periodic table as tin? a. silicone b. arsenic c. tellurium d. technetium ANS: C PTS: 1 Which element is the first one in the group IVA(14) of the periodic table? a.C b.Na c. Sc d. Ti ANS: A PTS: 1 What is the symbol of the element that is in Period 4, and Group IIA(2) of the periodic table? a. Zn b. Ca c. C ANS: B PTS...

ocabulary: Avogadro’s number, chemical equation, chemical formula, chemical reaction, coefficient, combination, combustion, conservation of matter, decomposition, double replacement, molar mass, mole, molecular mass, molecule, product, reactant, single replacement, subscript Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. A candle is placed on one pan of a balance, and an equal weight is placed on the other pan. What would happen if you lit up the candle and waited for a w...

Chapter 1—Matter, Measurements, and Calculations MULTIPLE CHOICE 1. 2. 3. 4. 5. 6. 7. 8. The mass of an object is a. the force between the object and the earth. b. a measure of the amount of matter in the object. c. the amount of space the object occupies. d. depends on the location of the object on the earth. ANS: B PTS: 1 Any two objects are attracted to each other by _____ . a. gravity c. magnetism b. electrostatic forces d. all of them ANS: A PTS: 1 How is the weight of ...

CHEM120 Week 3 Virtual Lab: Stoichiometric Calculations Part I and Part II – Download To Score An A+ OL Lab 5: Stoichiometric calculations Identify an unknown compound using gravimetric analysis Learning Objectives: • Explain the relationship between mass, molecular weight, and numbers of atoms or molecules and perform calculations deriving these quantities from one another • Perform mass-to-mass stoichiometric calculations via conversions to moles • Identify the limiting and excess reag...

Stoichiometry Gizmo Student Exploration: Complete Solution TOP RATED Stoichiometry Answer Key Vocabulary: Avogadro’s number, balanced equation, cancel, coefficient, dimensional analysis, molar mass, mole, molecular mass, stoichiometry Prior Knowledge Questions (Do these BEFORE using the Gizmo.) [Note: The purpose of these questions is to activate prior knowledge and get students thinking. Students are not expected to know the answers to the Prior Knowledge Questions.] 1. A 250 mL glass of ora...

Vocabulary : Avogadro’s number, chemical equation, chemical formula, chemical reaction, coefficient, combination, combustion, conservation of matter, decomposition, double replacement, molar mass, mole, molecular mass, molecule, product, reactant, single replacement, subscript Prior Knowledge Questions (Do these BEFORE using the Gizmo .) 1. A candle is placed on one pan of a balance, and an equal weight is placed on the other pan. What would happen if you lit up the candle and waited for...

1. Which of the following elements is found in the same period of the periodic table as tin? a. silicone b. arsenic c. tellurium d. technetium ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False DATE CREATED: 3/4/2016 3:37 PM DATE MODIFIED: 3/4/2016 3:37 PM 2. Which element is the first one in the group IVA(14) of the periodic table? a. C b. Na c. Sc d. Ti ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False ...

Chapter 03 - Electronic Structure and the Periodic Law 1. Which of the following elements is found in the same period of the periodic table as tin? a. silicone ANSWER: POINTS: QUESTION TYPE: HAS VARIABLES: DATE CREATED: DATE MODIFIED: b. arsenic c. tellurium c 1 Multiple Choice False 3/4/2016 3:37 PM 3/4/2016 3:37 PM d. technetium 2. Which element is the first one in the group IVA(14) of the periodic table? a. C ANSWER: POINTS: QUESTION TYPE: HAS VARIABLES: DATE CREATED: DATE MODIFIE...