Answers by Jakevdp
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Answers by Jakevdp

Answers by Jakevdp
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Given the reactions: X(s) + 1/2 O2(g) ⟶ XO(s) ΔH = -817.3 kJ XCO3(s) ⟶ XO(s) + CO2(g) ΔH = +491.7 kJ What is the ΔH for the reaction: X(s) + 1/2 O2(g) + CO2(g) ⟶ XCO3(s)
answered Dec 31, 2024
3 votes
142k views
Write a equivalent expression for 1/y^-1/4 using positive exponents
answered Dec 24, 2024
1 vote
34.4k views
What happens s a result of natural selection
answered Sep 3, 2024
2 votes
221k views
If H. erectus/ergaster was a hunter, how might it have killed animals?
answered May 8, 2024
4 votes
89.0k views
What were the radio listening habits in the late 1920's?
answered Feb 1, 2024
7 votes
126k views
The two thick, muscular cavities in the heart which pump the blood is called a(n):-------------
answered Jan 31, 2024
4 votes
195k views
Select the statements bellow that are true about the civil war (select all that apply) A. it did not happen at all B. it happened in 1809 C.it was caused because of slavery D. Abraham lincoln started it
answered Dec 31, 2023
7 votes
64.8k views
Let be 0 an angle in quadrant I such that tqn0
answered Dec 7, 2023
7 votes
209k views
Calculate the volume of a cylinder with height 18cm and diameter 5cm. Give your answer rounded to 3sf.​
answered Oct 6, 2023
4 votes
223k views
Which of these phrases can be used as a transition between sentences or paragraphs? A. In the forest B. Until it rains C. As a result
answered Sep 14, 2023
6 votes
220k views
For each value of u, determine whether it is a solution to - 7+5u < 33.
answered Aug 18, 2023
1 vote
178k views
Select all equations that can result from adding these two equations or subtracting one from the other. x+y= 12 3x- 5y = 4 4x4y=16 2-6y=-8 -2-4y=8 5x4y=28 -2x+6y=8 2x+y=16
answered Jul 23, 2023
4 votes
83.3k views
A magazine company estimates that its monthly cost isC(x) = 700x2 + 400x and its monthly revenue isR(x) = -0.4x3 + 900x2 2002 + 600, where x is in thousands ofmagazines sold. The profit is the difference
answered May 4, 2023
5 votes
52.1k views
Simplify the question
answered Nov 11, 2022
6 votes
221k views
What common ideas did the progressive presidents come up with
answered Oct 12, 2022
8 votes
91.2k views
Anyone help me pls!!! ASAP!!!
answered Oct 3, 2022
10 votes
19.8k views
Why do you think people pay more attention to their physical health than their mental health?​
answered Sep 2, 2022
10 votes
215k views
What did the president decide to do to solve this financial crisis in Mexico ?
answered Aug 22, 2022
1 vote
101k views
What was the industrial revolution
answered Jul 28, 2022
5 votes
93.5k views
George exercises 15 minutes a day, every day of the year. How many minutes a year does George exercise? Write and solve an equation to find the answer. A. 365 × 15 = 5 , 475 minutes B. 365 + 15 = 380 minutes
answered Mar 30, 2022
2 votes
127k views
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