Answers by Hossein Heydari
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Answers by Hossein Heydari

Answers by Hossein Heydari
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Use the picture below to answer this question. What is the total bond energy? Is the reaction exothermic or endothermic? Use the structures and bond energy to answer. C2H4 + H2 > C2H6. Refer to this list
answered Aug 14, 2023
4 votes
205k views
As fertilizer from farm fields makes its way into the Chesapeake Bay, a chemical reaction occurs between the nitrogen within the fertilizer and which element found in the water?
answered Oct 27, 2022
10 votes
213k views
Solve the equation: 342 = 2x - 8. Show your reasoning.​
answered Jun 19, 2022
11 votes
129k views
What is the name of the ion with 4 neutrons and 4 electrons with a 1- charge? A: Hydrogen B: Berrylium C: Lithium D: Helium
answered Jun 17, 2022
5 votes
91.6k views
Why do scientific investigations lead to more questions? A. Scientists never agree about experiments. B. Experiments are never correct. C. Scientists cannot answer questions. D. They find more things that
answered Jun 11, 2022
5 votes
136k views
Plz help me friends help me​
answered Apr 27, 2022
5 votes
223k views
Is the Mid-Atlantic Ridge pulling apart and does it constantly have earthquakes going deeper than 400km into the earth? type a paragraph or sentences PLEASE HELP!!!!!!
answered Feb 24, 2022
7 votes
127k views
Genghis Khan's grandson Haluga Khan conquered Baghdad in 1258. Why was the siege of Baghdad so devastating to Islamic culture?
answered Jan 3, 2022
0 votes
229k views
A straight, stiff, horizontal wire of length 46 cm and mass 20 g is connected to a source of emf by light, flexible leads. A magnetic field of 1.33 T is horizontal and perpendicular to the wire. 1)Find
answered Nov 30, 2021
3 votes
97.2k views
Finding the slope (-2,-2) , (11,-10)​
answered Nov 22, 2021
2 votes
163k views
What substances must be provided for aerobic respiration to take place from outside the cell
answered Jun 27, 2021
2 votes
94.3k views
Solve for r. Give an exact answer. 1/2r-3=2(4-3/2r)
answered Apr 25, 2021
2 votes
14.2k views
....... help please, I need 7-13
answered Apr 7, 2021
4 votes
151k views
Burns Industries currently manufactures and sells 20.000 power saws per month, although it has the capacity to produce 35,000 units per month. At the 20,000-unit-per-month level of production, the per-
answered Mar 24, 2021
5 votes
94.5k views
GIVING 20 POINTS PLS HELP!!! Find the value of g(25) for the function below. g(x) = 24(x − 39) A. -911 B. -14 C. -336 D. 561
answered Jan 27, 2021
1 vote
76.5k views
One member of a gardening club can plant flowers in 12 hours. With two members of the club working together the job can be done in 8 hours. How long would it take the second member of the club , working
answered Nov 22, 2020
5 votes
233k views
5. The square and triangle below have equal perimeters. Find the value of x. (Reminder: The perimeter is the total distance around the edge of a figure.) X - 5 12 A. x = -2 B. x = 5 C. x = 16 D. x = 19
answered Jul 25, 2020
2 votes
8.4k views
Solve the triangle ABC if A = 37.1 and c = 6.7 mm. Find B, a, and b. Round a and b to the nearest thousandth as needed.
answered May 19, 2020
1 vote
157k views
Help please♥️♥️♥️♥️♥️
answered Apr 20, 2020
3 votes
113k views
When John began helping his favorite uncle Burton with his finances, he discovered his uncle was still renting a rotary-dial telephone from the phone company. Uncle Burton had paid thousands of dollars
answered Apr 11, 2020
6 votes
229k views
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