Questions by ADEpt

Questions by ADEpt

A solution is prepared by dissolving 20 g NaOH (FW = 400 g/mol) to 255 ml of solution. If the density of the solution is 1.15 gim, what is the mass percent NaOH in the solution? 0.68% 0.78% 0.90% 6.8%

asked May 23, 2020

1 answer

0 votes

158k views

The scores on a certain test are normally distributed with a mean score of 69 and a standard deviation of 4. what is the probability that a sample of 90 students will have a mean score of at least 69.4216?

asked Sep 17, 2019

1 answer

1 vote

181k views

Very important!! Solve the inequality 6r + 30 ≥ 12 or -r > 12 (the question is important for high school application c:) A) {r > -12} -- B) {r < -12 or r ≥ -3} -- C) {-12 < r < -3} -- D) {r > -3}

asked Jul 10, 2019

2 answers

0 votes

109k views

Where do the Indus and Ganges Rivers originate or begin?

asked Jun 3, 2019

2 answers

3 votes

136k views

Best statement best describes the two main functions of the us government

asked Feb 9, 2019

1 answer

3 votes

117k views

Bacteria are able to undergo nitrogen fixation to change nitrogen gas into a form that can be used by plants.

asked Sep 1, 2018

2 answers

1 vote

227k views

George has the goal of walking 9/2 kilometers today.each time he walks to school and back he walks a total of 1/2 kilometers what is the meaning of 9/2 ÷ 1/2

asked Aug 8, 2018

1 answer

1 vote

12.8k views

According to henry moniz of viacom, what is the foundation of great leadership?

asked Jul 21, 2018

1 answer

1 vote

212k views

Which number produces an irrational number when added to 2 over 5

asked Feb 10, 2018

1 answer

3 votes

207k views

How did stephen douglas help win approval of the compromise of 1850

asked Jan 3, 2018

1 answer

3 votes

100k views

The earth exerts a gravitational force of 500 N on an object. What is the mass of the object in kg

asked Dec 10, 2017

1 answer

5 votes

3.8k views

What is the smallest unit of a molecular compound with the properties of that compound

asked Oct 1, 2017

1 answer

5 votes

196k views

Which of the following is a balanced equation for Copper (II) sulfate + aluminum --> aluminum sulfate+solid copper? A. CuSO4(aq)+Al(s) --> Al2(SO4)3(aq)+Cu(s) B. 3 CuSO4(aq)+2Al(s) -->Al2(SO4)3(aq)+Cu(s)

asked Feb 10, 2017

1 answer

2 votes

43.0k views

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