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Answers by Piya

Answers by Piya
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The protons on C3 of pentane-2,4-dione have a pKa of approximately 10. Using curved arrows, propose a mechanism for the acid-base reaction equation shown below, including an contributing resonance structures
answered May 2, 2020
4 votes
91.5k views
A certain project can be completed by 28 men in 90 days. the numbers of men needed varies inversely to the time needed to complete the project. if the contractor wants to complete the project in 72 days,
answered Sep 29, 2019
5 votes
86.4k views
can someone help me figure out all my Khan Academy questions I can't figure out anything and I always learn better when I get the answer but I don't want to keep getting it wrong because my grade will
answered Sep 24, 2019
4 votes
101k views
Think about the two words that make up the term reproductive isolation. How do you think reproductive isolation affects the evolution of a species?
answered Sep 9, 2019
4 votes
206k views
Anne needs 2 kinds of fruits to prepare a fruit salad. She has 6 kinds of fruits to choose from. In how many ways can she choose the fruits? Identify if the situation involves combinations or permutations.
answered Aug 4, 2019
6 votes
140k views
The half-life of a radioactive isotope is the amount of time it takes for a quantity of that isotope to decay to one half of its original value. (a) express the half-life of a radioactive isotope in terms
answered Jul 27, 2019
1 vote
72.4k views
In My Bondage and My Freedom by Frederick Douglass, why does Mrs. Auld follow her husband’s advice to stop teaching Douglass to read?
answered May 22, 2019
7 votes
221k views
Steve puts some cheddar cheese in a pan on the stove and starts to melt it. After a little while, there is a layer of oil floating on top of the cheese. From the way the cheese melted, Steve knows it is
answered Mar 4, 2019
4 votes
107k views
What is the equation of a line that passes through the point (4,2) and is perpendicular to the line whose equation is y = x3 - 1 Question 6 options: y = -3x + 14 y = x3 + 14 y = 3x + 23 y = -3x + 23 Question
answered Jan 29, 2019
1 vote
184k views
Meagan has been receiving psychotherapy. lately, she has been showing up late and become hostile to such an extent that it is interfering with her therapy. she is likely showing question 2 options: corese
answered Dec 1, 2018
6 votes
233k views
Which two elements of narrative nonfiction can you identify in this excerpt from “My Brother Paul” by Theodore Dreiser? Often these references to mother or father or their difficulties would bring tears
answered Nov 3, 2018
4 votes
105k views
How is oxygen different than neon explain your answer
answered Aug 20, 2018
5 votes
175k views
Which European soldier fought alongside the Patriots until his death at the Battle of Camden? A) Marquis de Lafayette B) Johann de Kalb C) Casimir Pulaski D) Thaddeus Kosciusko
answered Jul 20, 2018
4 votes
113k views
Solve this math mathematics problem –8z – 14z
answered Jul 7, 2018
4 votes
36.0k views
The balanced equation below shows the products that are formed when pentane (C5H12) is combusted. C5H12 + 8O2 mc029-1.jpg 10CO2 + 6H2O What is the mole ratio of oxygen to pentane?
answered Sep 19, 2017
4 votes
31.8k views
What was the outcome of conflicts between Native Americans & the U.S. military on the plains?
answered Aug 31, 2017
2 votes
74.2k views
2logxbase5 3logybase3=8 and 6logxbase5 2logybase3=2 solve silmultaneously
answered Jun 30, 2017
2 votes
50.1k views
If 15 counters are the whole set what is 3/5 of the set?
answered Jan 10, 2017
4 votes
99.1k views
8 times what equals 216
answered Mar 19, 2016
2 votes
206k views
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