Recent activity by Cristian Necula

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Write the Lewis structures of all isomers with the formula C3H7ON that contain an amide linkage. a) CH₃CONHCH₂CH₃; CH₃CH2CONH₂; CH₃CH₂CH₂ONO b) CH₃CONHCH₂CH₃; CH₃CH₂CH₂ONO; CH₃CH₂ONOCH₃ c) CH₃CH₂CH₂ONO;

answered Nov 24, 2024

1 answer 32.6k views

The diagram below shows the offspring numbers for some r-selected and K-selected species: Image shows descriptions of species offspring numbers. From left to right is an oyster at 500 million a year; fish,

asked Nov 11, 2024

1 answer 133k views

Mesopotamia was a ? a center from which rich cultures develop and spread to other places.

answered Aug 29, 2024

1 answer 164k views

An isosceles trapezoid has a perimeter of 42 meters. Its shorter base measures 1 meter and its longer base measures 7 meters. The two remaining sides have the same length; what is that length?

answered Aug 16, 2024

1 answer 216k views

A 2-year-old boy has a 1-week history of edema. On examination, his BP is 100/60 and he has generalized edema and ascites. Lab values show Cr 0.4, albumin 1.4 g/dL, and cholesterol 569 mg/dL. A UA shows

answered Aug 7, 2024

1 answer 19.3k views

It is known that the population variance equals 529. With a 0.98 confidence coefficient, what sample size is needed to estimate the population mean if the desired margin of error is 3 or less?

answered Aug 7, 2024

1 answer 172k views

Which band led by Ric Ocasek had a hit with the song "Just What I Needed" in Central Park in 1979? a) The Cars b) Led Zeppelin c) Queen d) The Rolling Stones

asked Jul 6, 2024

1 answer 20.6k views

Approximate the probability that x will be within 0.3 of the population mean. a) Use the standard deviation to approximate b) Employ the z-score to estimate the probability c) Apply the variance to find

answered Jun 23, 2024

1 answer 39.9k views

If you were mapping bacterial genes and let the conjugation go for 100 minutes, approximately what percentage of the genome would be transferred? a. 0% b. 25% c. 50% d. 755 e. 100%

answered Jun 22, 2024

1 answer 235k views

the ability of people to quickly assess the emotions of those around them and adapt their words, tone, and gestures accordingly is known as social intelligence. question 4 options: true false

answered Jun 9, 2024

1 answer 234k views

Find the circumference of a circle with a radius of 4ft. Circumference =[x]ft.

answered Jun 3, 2024

1 answer 52.9k views

Which disease or disorder is tumor of the lymph tissue? Olymphoma Olymphangioma Olymphadenitis lymphedema

asked May 27, 2024

1 answer 88.2k views

What are some of the ethical, medical, and historical ramifications associated with the study and use of HeLa cells?

answered May 27, 2024

1 answer 187k views

alan has 552 vacation photos he puts 12 photos on each page how many pages does he need for all his photos

answered May 8, 2024

2 answers 165k views

Miley and Cole ended up making the same number of biscuits for a bake sale at school, even though Miley made them in batches of 7 biscuits and Cole made them in batches of 11 biscuits. What is the smallest

asked Mar 2, 2024

1 answer 210k views

What role does a router play on a network? Chapter 3.4.4 a) It connects devices within the same network. b) It forwards data between different networks. c) It manages network security. d) It ensures the

asked Jan 28, 2024

1 answer 31.0k views

Which event occurred during the Cenozoic era? Early humans began to make tools, harvest plants, and make cave paintings. Pangaea, the super continent, was formed. Pangaea began to break apart into many

answered Dec 12, 2023

1 answer 202k views

Please help I don’t understand

answered Sep 2, 2023

1 answer 217k views

How long was Odysseus fighting the Trojan war?

answered Jul 10, 2023

2 answers 1.4k views

At the gas station, three small drinks and two large drinks contain 108 ounces of cola. A small drink contains a third as much cola as a large drink. How much cola does each size contain (I need to write

asked Jun 20, 2023

1 answer 88.8k views

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