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
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
Write an algebraic expression for 3 less than m
answered Mar 20, 2022
7 votes
229k views
if you read the diary of Anne Frank can help me with a question what was the religious celebration that Anne Frank wrote in her diary help
answered Mar 2, 2022
7 votes
29.7k views
I need help finding the answer to this: Nathan opens a new savings account and makes an initial deposit of $400. If the account earns 2% annual interest, how much interest will he earn in 9 months?
answered Jan 24, 2022
12 votes
114k views
The Academic Computing Center has five trainers available in its computer labs to provide training sessions to students. Assume that the design capacity of the system is 1900 students per semester and
answered Jan 12, 2022
6 votes
25.7k views
Us What is the mole fraction of KCl in an aqueous solution that contains 26.3% KCI (weightweight %)?
answered Dec 2, 2021
2 votes
3.8k views
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