(Show your work and prove or disprove each multiple choice answer. Circle the best answers. )...
(Show your work and prove or disprove each multiple choice answer. Circle the best answers. )
Which of the following statements about the chemical reaction show below is true?
2 Mg(s) + O2(g) —> 2 MgO(s)
a. Magnesium is the limiting reagent.
b. Reacting 6 moles of oxygen gas will consume 3 moles of magnesium
c. Two grams of solid magnesium will produce 2 grams of magnesium oxide
d. Reacting 3 moles of solid magnesium will produce 3 moles of magnesium oxide
e. a. and c. are both true.
Homework Answers
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(Show your work and prove or disprove each multiple
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In a chemical reaction, a student react 1.315 grams of elemental Mg solid in the lab...
In a chemical reaction, a student react 1.315 grams of elemental Mg solid in the lab (with unlimited amount of oxygen) and produced MgO. 2Mg(s) + O2(g) 2MgO(s) (A) Determine the number of moles of Mg solid used in this reaction? (B) If all the magnesium reacted to form the magnesium oxide, how many moles of magnesium oxide was produced? (C) What mass of magnesium oxide was produced? (D)Name the general type of reaction shown above?
Work each of the following problems. SHOW ALL WORK TO RECEIVE ANY CREDIT (Hint: Make sure...
Work each of the following problems. SHOW ALL WORK TO RECEIVE ANY CREDIT (Hint: Make sure your chemical equations are balanced.) 1. When 18.0 g of O2 reacts with 25.0 g of CHSOH, what is the limiting reactant? What is the theoretical yield in grams of CO2? C2HsOH +O2 CO2 +H2On 2. What is the limiting reactant when 126 g of Ag reacts with 142 g of HNO,? What is the theoretical yield in grams of AgNO3? AgNO (a) +NO+H2O...
17) Which of the following is TRUE? A) Stoichiometry allows prediction of how much of the reactants are necessary t...
17) Which of the following is TRUE? A) Stoichiometry allows prediction of how much of the reactants are necessary to form a given amount of product. B) Stoichiometry shows the numerical relationship between chemical quantities in a balanced chemical equation. C) Stoichiometry allows prediction of the amounts of products that form in a chemical reaction based on the amounts of reactants D) All of the above are true. E) None of the above are true. 18) Diatomic O2 can react...
Calculate the following: ***SHOW ALL WORK!!!! Or NO CREDIT*** Circle your answers. 8pts each In the...
Calculate the following: ***SHOW ALL WORK!!!! Or NO CREDIT*** Circle your answers. 8pts each In the reaction: 2NO + O2 à 2NO2 the %yield is only 80.2%. To produce 25.0g of NO2, how many grams of O2 are required? BaCl2 + Na2CO3 à BaCO3 + 2NaCl. If 3.50 g of BaCl2 is added to 2.00 g of Na2CO3, A) Which is the limiting reagent? B) How many grams of NaCl theoretically can be produced? C) If the reaction produced 1.70g...
Express your answer with the appropriate units. 1. How many milliliters of oxygen gas at STP...
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Question 1 1 pts Fine wires of magnesium burn readily in oxygen to produce magnesium oxide....
Question 1 1 pts Fine wires of magnesium burn readily in oxygen to produce magnesium oxide. If 15.8 g of Mg are reacted with 9.69 g of Oz in a sealed reaction vessel, what is the mass of MgO produced? (Fill in only number, 3 sig figs) Question 2 1 pts Manganese(II) sulfate is produced in the following reaction: 5 H2C204(aq) + 2 KMnO4(aq) + 3 H2SO4 (aq) → 10C026 + 2 MnSO4(09) + K3504 (aq) + 8 H20 10...
17) Which of the following is TRUE? A) Stoichiometry allows prediction of how much of the reactants are necessary t...
17) Which of the following is TRUE? A) Stoichiometry allows prediction of how much of the reactants are necessary to form given amount of product B) Stoichiometry shows the numerical relationship between chemical quantities in a balanced chemical equation. C) Stoichiometry allows prediction of the amounts of products that form in a chemical reaction based on the amounts of reactants. D) All of the above are true. E) None of the above are true. 16) 18) Diatomi Oy can react...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle answers and show all work on separate sheet(s) of paper. 5 problems will be chosen randomly for assessing a score on this assignment. Assignment is due at the end of the lab period. 1.) 5.0 g of magnesium metal is burned in excess oxygen to produce magnesium oxide. (a) Write a balanced chemical equation for this reaction with the correct phases of all substances...
Experiment 7 Empirical Formula Objectives: Determine the expected formula for the ionic oxide expected when Mg...
Experiment 7 Empirical Formula Objectives: Determine the expected formula for the ionic oxide expected when Mg reacts with O2 Find the theoretical and actual yields of magnesium oxide Evaluate results using stoichiometry and error analysis Introduction: The goal of this experiment is to determine the Empirical Formula of a Compound. (The Empirical Formula of a Compound is the simplest whole number ratio between the elements of a compound) If one can synthesize a compound from elements, then it is possible...
may you please provide details on how you recieved the answer thank you. 3 pages. Chem...
may
you please provide details on how you recieved the answer thank
you.
3 pages.
Chem 143 - Lab Pre-lab Exercise Show the details of each calculation to get full credit 1. Magnesium oxide, a white powdery substance can often be made by heating magnesium metal in presence of oxygen. a. Write the balanced chemical equation for this reaction (including the state symbols such as (s) () or (aq)] b. When 10.1 g magnesium is allowed to react with 10.5g...
Work each of the following problems. SHOW ALL WORK TO RECEIVE ANY CREDIT (Hint: Make sure your chemical equations are balanced.) 1. When 18.0 g of O2 reacts with 25.0 g of CHSOH, what is the limiting reactant? What is the theoretical yield in grams of CO2? C2HsOH +O2 CO2 +H2On 2. What is the limiting reactant when 126 g of Ag reacts with 142 g of HNO,? What is the theoretical yield in grams of AgNO3? AgNO (a) +NO+H2O...
17) Which of the following is TRUE? A) Stoichiometry allows prediction of how much of the reactants are necessary to form a given amount of product. B) Stoichiometry shows the numerical relationship between chemical quantities in a balanced chemical equation. C) Stoichiometry allows prediction of the amounts of products that form in a chemical reaction based on the amounts of reactants D) All of the above are true. E) None of the above are true. 18) Diatomic O2 can react...
Question 1 1 pts Fine wires of magnesium burn readily in oxygen to produce magnesium oxide. If 15.8 g of Mg are reacted with 9.69 g of Oz in a sealed reaction vessel, what is the mass of MgO produced? (Fill in only number, 3 sig figs) Question 2 1 pts Manganese(II) sulfate is produced in the following reaction: 5 H2C204(aq) + 2 KMnO4(aq) + 3 H2SO4 (aq) → 10C026 + 2 MnSO4(09) + K3504 (aq) + 8 H20 10...
17) Which of the following is TRUE? A) Stoichiometry allows prediction of how much of the reactants are necessary to form given amount of product B) Stoichiometry shows the numerical relationship between chemical quantities in a balanced chemical equation. C) Stoichiometry allows prediction of the amounts of products that form in a chemical reaction based on the amounts of reactants. D) All of the above are true. E) None of the above are true. 16) 18) Diatomi Oy can react...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle answers and show all work on separate sheet(s) of paper. 5 problems will be chosen randomly for assessing a score on this assignment. Assignment is due at the end of the lab period. 1.) 5.0 g of magnesium metal is burned in excess oxygen to produce magnesium oxide. (a) Write a balanced chemical equation for this reaction with the correct phases of all substances...
may
you please provide details on how you recieved the answer thank
you.
3 pages.
Chem 143 - Lab Pre-lab Exercise Show the details of each calculation to get full credit 1. Magnesium oxide, a white powdery substance can often be made by heating magnesium metal in presence of oxygen. a. Write the balanced chemical equation for this reaction (including the state symbols such as (s) () or (aq)] b. When 10.1 g magnesium is allowed to react with 10.5g...
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