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See page 666 05 Question (2 points) A reaction involves the following elementary steps. H, (g)...
A reaction involves the following elementary steps.H2(g)+O2(g) → H2O2(g)H2O2(g)+H2(g) → 2H2O(g)2H2O(g)+Ca(s) → Ca(OH)2(s)+H2(g)What is the net reaction?
05 Question (1 point) 3rd attempt And See Periodic Table O See H Balance the neutralization reaction of phosphoric acid with magnesium hydroxide. States of matter are not needed. 8 H2PO4+ Mg(OH)2 I > 2nd attempt 1st attempt BOF 13 QUESTIONS COMPLETED < 05/13 > VIEW SOLUTION SUBMIT ANSW o BI
See pa 05 Question (1 point) A battery can provide a current of 1.60 A at 3.00 V for 5.00 hr. How much energy (in kJ) is produced? 2nd attempt hal See Periodic Table OS Energy- 25.11 1st attempt 06 Question (1 point) In the electrolysis of water, how long will it take to produce 1.000 x 102 L of H2 at STP (273K and 1.00 bar) using an electrolytic cell through which a current of 56.00 mA flows? 3rd...
05 Question (3 points) Consider the reaction below between between CO2 and CH 3MgCl. For the sake of simplicity, the MgCl counterion has been omitted. Make sure to add all hydrogen atoms and lone pair electrons where needed. 2nd attempt * Feedback See Periodic Table See Hint (o=y=0) H30 H-CH < 05/20 > SOLUTION TRY
Question (2 points) See page 22 1st attempt See Periodic Table See Hint If all of the energy from burning 318.0 g of propane (A Hcomb.C3H8 --2220 kJ/mol) is used to heat water, how many liters of water can be heated from 20.0°C to 100.0°C? (Assume that the density of water is 1.00 g/ml) L of water < 07/11 D40 ENG 0 OF 11 QUESTIONS COMPLETED e here to search
See page 181 11 Question (1 point) Determine the oxidation numbers of each of the elements in the following reaction, and identify which of them, if any, are oxidized or reduced. 3NO2(s)+H,0() 2H (aq) +2NO, (aq) +NO(g) 1st attempt See Periodic Table Q See Hint Part 1 (0.2 point) NO2 N: O: Q See Hint Part 2 (0.2 point) Part 2 (0.2 point) O See Hint Но Н: O: Part 3 (0.1 point) Q See Hint H* H: Part 4...
3rd attempt See Hint See Periodic Table Write a chemical equation for the hydrolysis reaction that explains why an aqueous solution of CHNH,CI is acidic. Please include the states of matter with each chemical species. Remember,it is an equilibrium reaction 2nd attempt 4 OF 10 QUESTTIONS COMPLETED <05/10 + VIEW SOLUTION SUBMIT ANSWERT MacBook Air # % & 2 3 4. 5 6 8 W т U P A S F G H J K L z X C V...
04 Question (1 point) 3rd attempt See Periodic Table See Hint Feedback Complete the following neutralization reaction between an acid and a base. Do not include the states of matter in the equation, and do not write coefficients of "1" 8 1 H.CO, - 2 KOH-K,Co, +2H,0 > 2nd attempt > 1st attempt BOF 13 QUESTIONS COMPLETED C TRY AGAIN < 04/13 > • VIEW SOLUTION е со o a
05 Question (2 points) a See page 404 Use the average bond energies in the text to estimate the enthalpy changes of the following reactions. 3rd attempt Part 1 (1 point) Feedback i See Periodic Table See Hint N2(g)+02(g) >2NO(g) kJ/mol Part 2 (1 point) Feedback
@ See page 648 14 Question (1 point) The value of Kc for the thermal decomposition of hydrogen sulfide, shown below, is 2.2 x 10-4 at 1400 K. 2H,S(g) + 2H2(g) + S2 (8) v 1st attempt . See Periodic Table D See Hint A sample of gas in which [ HS] = 5.40 M is heated to 1400 K in a sealed vessel. After chemical equilibrium has been achieved, what is the value of [H2S]? Assume no H2 or...