QUESTION 2 Balancing refers to the number of substances put INTO a reaction has to equal the number of substance PRODUCED by the reaction. This means there must be an understanding of HOW MANY of something is put into a reaction. Match the following description with the HOW MANY X of each substance. Answers may be used once, more than once, or not at all. Example: 6 X3Cl means I have/need 18 X's Example: 10 HX means I have/need 10 X's Etc. - - ✓3 X20 ✓ 2 Cax ✓ 4 XF2 ✓ 5 AIX3 ✓ 1 PBX4 ✓2 KX A. 2X's B. 5 C. 15 X's D. 3 E. 4 X's F. 10 G. None of these H. 6X's

QUESTION 2 Balancing refers to the number of substances put INTO a reaction has to equal the number of substance PRODUCED by the reaction. This means there must be an understanding of HOW MANY of something is put into a reaction. Match the following description with the HOW MANY X of each substance. Answers may be used once, more than once, or not at all. Example: 6 X3Cl means I have/need 18 X's Example: 10 HX means I have/need 10 X's Etc. - - ✓3 X20 ✓ 2 Cax ✓ 4 XF2 ✓ 5 AIX3 ✓ 1 PBX4 ✓2 KX A. 2X's B. 5 C. 15 X's D. 3 E. 4 X's F. 10 G. None of these H. 6X's

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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4. A mixture of glucose and oxygen reacts in acroblc respiration. The right-hand box below shows a particle diagram of the moles of substances present after the reaction is complete. On a piece of paper draw the "Before" box as shown and draw a particle diagram of the reactant molecules that produced the mixture shown on the right. Key = 02 = H20 = CO2 = CeH1206 %3D Before After You will need to draw a diagram to answer this question. On a piece of paper, draw the "Before" box as shown, and then draw a particle diagram of the reactant molecules that produced the mixture shown on the right.
* Question Completion Status: A Moving to another question will save this response. Question 25 "How many grams of carbon dioxide will be produced by the complete combustion of 50 grams of C 5H 12? With 128.62grams of oxygen? Enter the coefficients for the balanced chemical equation (enter "" 1" for compounds without a coefficient) C5H 12+ 02 - H20 How many grams of carbon dioxide are produced from the amount of hydrocarbon? round your answer to the nearest whole number How many grams of carbon dioxide are produced from the amount ofoxygen? round your answer to the nearest whole number Which is reactant is the limiting reactant? type ""oxygen"" or ""hydrocarbon"" How many grams of carbon dioxide is produced? round your answer to the nearest whole number A Moving to another question will save this response.
Directions: Write T if the statement is true and F it is false. Place your answers on the blank provided in each number. 1. Chemists need a measurement called percent yield to indicate how successful a reaction has been. _2. The theoretical yield is the ratio of the actual yield to the theoretical yield, expressed as a percentage. 3. The actual yield is the amount of product that is actually formed when the reaction is carried out in the laboratory. 4. The maximum amount of product that could be formed from the given amounts of reactants is called the percent yield.
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Calculate how many moles of NH3 form when each quantity of reactant completely reacts according to the equation: 3N2H4(l)→4NH3(g)+N2(g) 2.0 mol N2H4 Express your answer using two significant figures. 3.70 mol N2H4 Express your answer using three significant figures. 64.3 g N2H4 Express your answer using three significant figures. 4.86 kg N2H4 Express your answer using three significant figures.
A small fire breaks out at the accident scene. You notice that the source is a compound with the formula CgH6. You also know that the combustion reaction requires O2 and produced carbon dioxide and water. Choose the correctly balanced reaction for CgH6. C8H6+1908CO₂ + 3H₂O 2C8H6+ 1902 16CO2 + 6H₂O C8H6+19/2 02 → 8CO2 + 3H₂O C8H6+902 8CO₂ + 3H₂O
If the theoretical yield of a reaction is 14. 2 g and the actual yield is 7.81 grams, the percent yield is... 71.1% 182% 55.0% 100.%
For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants.2Al(s)+3Cl2(g)→2AlCl3(s) Part A: 1.0 g Al; 1.0 g Cl2 Express your answer as a chemical formula. Part B: 2.2 g Al; 1.8 g Cl2 Express your answer as a chemical formula. Part C: 0.353 g Al; 0.482 g Cl2 Express your answer as a chemical formula.
The theoretical yield of product for a particular reaction is 37.06 g. A very careless student obtained only 35.47 g of product after carrying out this reaction. What is the percent yield that this student obtained? Enter a number only; do not spell Include the correct number of significant figures for your answer Answer: % yield
How many moles of C are formed upon completed reaction of 2 mol B according to generic chemical reaction A+B---->C
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For the reaction shown, calculate how many moles of NH3NH3 form when each amount of reactant completely reacts. 3N2H4(l)→4NH3(g)+N2(g) Part A 4.9 molN2H4molN2H4 Express your answer using two significant figures. Part B 2.25 molN2H4molN2H4 Express your answer using three significant figures. Part C 6.3×10−2molN2H46.3×10−2molN2H4 Express your answer using two significant figures. Part D 9.34×107molN2H49.34×107molN2H4 Express your answer using three significant figures.