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I need someone to check my answer, not answer the question for me :) question: for...
Can someone double check my answers for me. My answers are in bold. A buffer is __________ (chemical definition) that ____________ (functional definition). (i) A mixture of a weak acid or base and its conjugate (ii) A mixture of an acid and a base (iii) Resists pH changes in aqueous solutions (iv) Reduces reactivity of aqueous solutions A (ii), (iii) and (iv) B (i), (iii) and (iv) C (ii) and (iii) D (i) and (iii) E (i) and (iv) Most...
I just took an online quiz, and it labeled my answer wrong. Can
someone please check if for me?
Question 2 0 / 12.5 points Use Lenz's law to determine the direction of induced current in each case. (b) . B increasing B decreasing (1) X a. clockwise; b. clockwise; C. counterclockwise; d. counterclockwise; e. counterclockwise; f. clockwise a. clockwise; b. counterclockwise;c. clockwise; d. counterclockwise; e. counterclockwise; f. counterclockwise a. counterclockwise; b. clockwise; C. counterclockwise; d. counterclockwise; e. clockwise; f....
I am so confused. Can someone please help me. I will rate
2. The decomposition of azomethane, (CH3)2N2, was studied at 300°C, and the data shown below were obtained. In order to determine the order of this reaction, make the following three graphs using Excel. a. Plot the concentration of azomethane versus time. b. Plot the inverse concentration of azomethane versus time. c. Plot the natural logarithm of the concentration of azomethane versus time. the page. Time (min) Concentration of...
I
was wondering if someone could help me with some problems on my
test, my teacher allows me to correct them then give them back for
1/2 credit. Along with the correct answer for each I'd like to know
why the answers are wrong and why the new answer is correct. The
questions with a red mark are the incorrect ones.
12 An unknown hydrocarbon compound (containing only hyd own hydrocarbon compound (containing only hydrogen and carbon) was analyzed for...
I
need someone to check that I did this right and explain what is
wrong if anything is wrong, I have a test over it and would like to
understand it
Reversing Entries: On September1st, you issued a $36,000, 8%, 6-month note to the bank, receiving $36,000 cash. 1) Prepare the December 31 adjusting entry to accrue the interest Dec. 31 nkrst onnse aeox.08 'a 2) Prepare the December 31 closing entry Dec. 31 Ininne summ 3) Prepare the March...
Question: Please help me to correct answer , I don't understand.
This is my last chance. please help me. 1s...
Please help me to correct answer , I don't understand. This is
my last chance. please help me.
1st pic: qustion
2nd pic: professor said that fix it. (NEED
HELP)
3rd pic: what I answered... please help me. Thank you so
so s os o much!!!
I am not sure what teacher wants me to put separate.......
please help me.(...
For this question, I got the answer as 0.00001172. It was
marked wrong, I dont know what I did wrong. the second picture are
my calculations.
uestion 8 O out of 3 points Hydrogen peroxide decomposes into water and oxygen in a first-order process. H 20 2(aq) + H200) liq+ 1/2O2(e) At 20.0°C, the half-life for the reaction is 3.92 x 10 seconds. If the initial concentration of hydrogen peroxide is 0.52 M, what is the concentration after 7.00 days?...
Can someone help me in solving the first question please. And second question I just included just to see if my answer is correct. My dyslexia plays with my mind sometimes =/ The pKb of ammonia is 4.74. What is the pKa? A 9.26 B 4.74 C 0.676 D 14 E 0.211 If I dissolve KOH in solution to a concentration of 3.4 x 10-4, what is [OH-] in solution?" A. 3.4 x 10-4 B 2.94 x 10-11 C Can...
i asked for help on this questions and someone gave me the
wrong answer. this is my
other attempt.
Review Topics] [References] Use the References to access important values if needed for this question. Consider the reaction: 4HCl(g) + O2(g)—2H2O(g) +2012(E) Using standard absolute entropies at 298K, calculate the entropy change for the system when 1.71 moles of HCl(g) react at standard conditions. AS system JK Submit Answer Retry Entire Group 8 more group attempts remaining
3 question all linked together: I need help with: The first one, I believe I got right, however, I am stuck on the second part of the question. Can someone review it, and help me. If my first part of the question is wrong, can someone explain it? Second and third question, also a double check to see if I have done this right. 1)A farmer performs a test cross on his erect-eared sow (female pig). Explain the purpose of...