Answers by Ruben Stolk
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Answers by Ruben Stolk

Answers by Ruben Stolk
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Alcohol is used as a source of fuel for some automobiles. The standard molar enthalpy of formation of ethanol C2H5OH(l) is -277.6 kJ/mol. For the balanced reaction equation of ethanol use: C2H5OH(l) +
answered Jan 15, 2022
8 votes
70.5k views
A cylinder is wight inches high with a radius of three inches.It contains a ball with a diameter of five inches. What volume is left unoccupied in the cylinder?
answered Jan 8, 2022
6 votes
72.9k views
Find the perimter and area​
answered Dec 13, 2021
1 vote
103k views
The Judicial branch can check the power of the Executive branch by 1.ruling its acts unconstitutional. 2.not ratifying its treaties. 3.impeaching the President. 4.overriding the President's veto
answered Nov 25, 2021
4 votes
231k views
What can cause a noncommunicable disease? O A. Viruses B. Airborne pathogens C. Environmental factors O D. Animal vectors The answer is C. Environmental factors Did it on apex
answered Sep 1, 2021
4 votes
184k views
Could someone help me please
answered Aug 24, 2021
1 vote
105k views
Which of these are indicators measured by the HDI? Check all that apply. O education Ogross national income O industrialization O infrastructure Olife expectancy O stability
answered Aug 22, 2021
4 votes
70.6k views
Find the area of the trapazoid for me please :)
answered Jun 21, 2021
7 votes
78.0k views
Zqaxswcedvrfbtghnyumj,ki.lo;/p'[ ( help please ) 14.What caused the United States to enter World War II? bombing of Pearl Harbor invasion of Russia invasion of France bombing of London
answered Mar 23, 2021
3 votes
3.5k views
Find the slope of the line passing through the points (9,4) and (9,-3)
answered Feb 26, 2021
2 votes
89.5k views
Use proportional reasoning to determine the value of a in the proportion shown below. 25 a=1 a=25 a=10 a=15 it’s c
answered Feb 25, 2021
3 votes
50.6k views
2. Answer these questions about early human migration. a. Historians are pretty certain humans evolved in Africa. But since there are no written records, how do we know this? What is this field of study
answered Jan 10, 2021
2 votes
185k views
Choose as many answers as apply. Questions you might ask a car dealer include: Which options are factory installed and which are dealer installed? Where did you buy that suit? Is there a dealer advertising
answered Oct 20, 2020
5 votes
99.6k views
Write a letter to your brother who live in abroad telling him about some of the happy event that have place in your family
answered Sep 1, 2020
2 votes
199k views
Increased government debt can lead to higher interest rates​ and, as a​ result, crowding out of private investment spending. In terms of borrowing​ (debt-spending), what will offset the effect of crowding
answered Jul 13, 2020
1 vote
69.3k views
What is the equation of the circle shown below? A. (x ‒ 4)2 + (y + 5)2 = 34 B. (x ‒ 5)2 + (y ‒ 4)2 = 5.83 C. (x + 4)2 + (y ‒ 5)2 = 34 D. (x ‒ 5)2 + (y + 4)2= 5.83
answered Apr 12, 2020
2 votes
146k views
An entity has decided to focus strictly on producing and selling one type of teddy bear. For the upcoming year, the entity hopes to make a 25% profit on sales. Fixed costs are set at $51,000, and variable
answered Apr 12, 2020
1 vote
106k views
How does nature and nurture affect pubertal timing?
answered Dec 21, 2019
6 votes
122k views
What new character did john dalton add to the model of the atom
answered Oct 26, 2019
3 votes
207k views
Simplify 6(x-3)=-42 -10 -6 1/2 -4 11
answered Aug 11, 2019
3 votes
11.0k views
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