Answers by Sumitk
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Answers by Sumitk

Answers by Sumitk
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For the following combustion reaction: CH_3COOH(l)+2O_2(g)→2CO_2(g)+2H_2O(g) with ΔH=−8.74×10² kJ, when a 50.3-g sample of acetic acid (molar mass = 60.05 g/mol) is burned, how much energy (in kJ) is released
answered Jan 1
3 votes
126k views
A weather station on the top of a mountain reports that the temperature is currently 0 �� C and has been falling at a constant rate of 3 �� C per hour. If it continues to fall at this rate, find each indicated
answered Dec 29, 2024
3 votes
28.8k views
The thermosphere layer of the atmosphere is between 90,000 and 110,000 meters above sea level. Which of the following elevations are in the thermosphere? Select yes or no. a. 9.8 x 10^-4 yes or no b. 1.
answered May 23, 2024
6 votes
148k views
Citing scientific studies and data a. ethos b. pathos c. logos
answered Mar 18, 2024
4 votes
84.2k views
A shop has a sale of 5% off all items in stock. If the original price of a dress is £40 what would be its sale price?
answered Mar 3, 2024
6 votes
4.1k views
What is the congealing or solidification point of fatty acids in fat? A) Smoke point B) Flash point C) Cloud point D) Freeze point
answered Mar 1, 2024
2 votes
215k views
Emma is x years old Kate is 12 years younger than Emma. The sum of their ages is 24 Work out the age of Emma
answered Dec 20, 2023
2 votes
15.0k views
Veronica randomly surveyed a group of students to find out how they arrived at school each day; her findings are recorded in the table below. using the data from the table, estimate how many students drive
answered Jul 7, 2023
11 votes
172k views
Amy went on a vacation for 6 weeks last summer. how many days. long was Amy's vacation
answered Jun 19, 2023
13 votes
40.8k views
Eighty percent of a roof, or 2800 square feet of the roof, has been re-shingled. What is the total area of the roof?.
answered May 4, 2023
6 votes
206k views
An airplane flying into a headwind travels the -mile flying distance between Indianapolis, Indiana, and Phoenix, Arizona, in hours. On the return flight, the airplane travels this distance in hours and
answered Jan 1, 2023
3 votes
196k views
When Social Security was first instituted by President Franklin Roosevelt in 1935, the payroll tax rate on wages used to fund the program was
answered Nov 28, 2022
4 votes
106k views
Describe how to plot the coordinate point: (8, 2)
answered Oct 14, 2022
7 votes
195k views
Pls help with math thank you
answered Sep 22, 2022
3 votes
86.9k views
What advantages did location bring to the Eastern empire?​
answered Jul 17, 2022
2 votes
191k views
Juana, ¿te encantaba oír ________ de los instrumentos? (1 point) la conga la voz el coro el ritmo
answered May 1, 2022
5 votes
31.5k views
100 divided by the sum of 22 and 3 as an expression
answered Apr 21, 2022
6 votes
63.8k views
In the diagram below, the angle of depression from the top of the lighthouse to a speed boat is 27 degrees.  The base of the lighthouse is 33 ft away from the boat.   Determine the height of the lighthouse,
answered Jan 17, 2022
1 vote
167k views
Louisa has a goal of collecting 100 pounds of dog food for a local shelter. She records how many pounds of food she collects each week. Week Pounds Collected 1 20.5 2 18 and three-fourths 3 32.75 How many
answered Dec 2, 2021
2 votes
132k views
What is Variable cause
answered Aug 27, 2021
1 vote
134k views
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