Recent activity by Ethan Wu

Recent activity by Ethan Wu

In an electrophilic substitution reaction of nitrobenzene, the presence of nitro group: (a) deactivates the ring by inductive effect. (b) activates the ring by inductive effect. (c) decreases the charge

answered Dec 30, 2024

1 answer 56.7k views

Calculate these masses. 5.4cm×3.2cm×7.1cm×1.2g/cm³:______g a)137.088g b)1371.84g c)325.68g d) 195.41g

answered Nov 25, 2024

1 answer 223k views

Which of the following is true about fleas? a) body is laterally compressed b) chewing mouthparts c) sucking mouthparts and wings d) most prevalent in springtime

asked Nov 7, 2024

1 answer 122k views

while taking attendance Mrs.Lee noticed 2 out of 25 students were absent. What percent of students were absent?

asked Nov 3, 2024

1 answer 219k views

Among Austria's 9 states, which is the smallest in area? a) Lower Austria b) Tyrol c) Vorarlberg d) Burgenland

answered Oct 13, 2024

1 answer 219k views

what part of geologic time is represented by creatures such as corals, crinoids, molluscs, and trilobites?

asked Sep 5, 2024

1 answer 114k views

Which form of post-translational control is being exploited by scientists to inactivate genes of interest?

asked Jul 13, 2024

1 answer 74.6k views

In any given population, what chance factor exists that might be passed to future generations? a) Genetic drift b) Gene flow c) Natural selection d) Mutations

answered Jun 10, 2024

1 answer 194k views

Increasing saturated fat consumption while decreasing added sugars and sodium is a healthy first step to improving your diet. O True O False

answered Jun 8, 2024

1 answer 5.0k views

Which letter on the map represents New York? OB OC OD OE

answered May 7, 2024

1 answer 60.2k views

The fact that Diego Velazquez had sent 900 men from Cuba to capture Cortes implies that ________?

answered Apr 11, 2024

1 answer 2.6k views

Foundations should extend at least how far above grade? a. 4 - 6 inches b. 6 - 8 inches c. 8 - 10 inches d. 2 - 4 inches

answered Mar 24, 2024

1 answer 98.3k views

Which of the following historical developments most strongly contributed to the mapmakers' depiction of West Africa and the southern half of the world in the map? a) The Silk Road trade routes b) The Age

answered Jan 15, 2024

2 answers 155k views

What is the maximum height a flea jumps straight up to?

answered Jan 9, 2024

1 answer 71.6k views

If you were from the south, what would you call the Battle of Bull Run? A. Gettysburg B. Sherman’s March C. Battle of Fort Sumter D. Battle of Manassas

answered Dec 10, 2023

2 answers 46.7k views

Distribute ( - 5a + 2a {}^2 - 2)(2a - 4)distribute

asked Sep 7, 2023

1 answer 108k views

A new neighborhood activity complex is being built in Alston. The perimeter of the rectangle playing field is 330 yards. The length of the field is 7 yards less than triple the width. What are the dimensions

asked Jun 26, 2023

1 answer 88.5k views

Simplify the problem 6(m + 5)

answered Jun 14, 2023

2 answers 141k views

Who killed Abraham Lincoln

answered Mar 22, 2023

2 answers 183k views

What is this equal to: (3*2)+6

answered Mar 14, 2023

2 answers 162k views

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