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Given the standard enthalpy changes for the reactions: P4(s) + 3 O2(g) -> P4O6(s) ΔHº = -1640 kJ mol-1 P4(s) + 5 O2(g) -> P4O10(s) ΔHº = -2940 kJ mol-1 Calculate the standard enthalpy change ∆Hº for the
answered
Nov 27, 2024
Chemistry
high-school
7
votes
18.9k
views
The floor surface in the immediate work area must be ________. 1) hard and level 2) covered in carpet 3) slippery 4) unstable
answered
Sep 15, 2024
Medicine
college
5
votes
205k
views
In horses, tan hair (H) is dominant over white hair (h). If a horse has white hair, which of the following alleles must it have?
answered
Sep 1, 2024
Biology
high-school
2
votes
183k
views
What is the meaning of "gangsters’ compact"?
answered
Feb 12, 2024
English
college
4
votes
215k
views
How do work out 349 divided by 60
answered
Sep 27, 2023
Mathematics
college
3
votes
233k
views
What is carbon dioxide?
answered
Dec 13, 2022
Physics
high-school
7
votes
162k
views
In the above expedition, Worlsey raises $300,000. Where does this money go and who is it meant for?
answered
Aug 10, 2022
English
college
5
votes
111k
views
What kind of medical test would a diagnostic healthcare professional order to collect a sample of a patient's internal tissues for analysis? blood test allergy test urinalysis biopsy
answered
Aug 6, 2022
Health
high-school
6
votes
138k
views
Help plz i have a f in this class
answered
Jul 15, 2022
Mathematics
middle-school
9
votes
108k
views
A species of bacteria is 10 micrometers long. A virus is 10,000 times smaller than bacteria. a. Using the table above, find the length of the virus in meters. Write the answer as a power. The virus is
answered
Jul 12, 2022
Mathematics
high-school
3
votes
197k
views
1: What key issues marked the early decades of the Reform Era in Texas history?
answered
Jun 25, 2022
History
high-school
5
votes
102k
views
Look at the potential energy diagram below. What amount of energy does the products have ? 100 80 PE 50 AB 40 C D 20 Progress of the reaction 40 KJ 60 KJ O 20 KJ 80 KJ
answered
May 30, 2022
Chemistry
college
3
votes
34.2k
views
Which statement describes an example of the intergumentary system and immune system working together
answered
Mar 10, 2022
Health
high-school
5
votes
15.4k
views
In the move The Patriot What happens to the Rebels being treated at the Martin's farm?
answered
Feb 23, 2022
History
high-school
0
votes
21.5k
views
A boy walks from point C to point D which is 50 m apart. Then, he walks back to point C. what is his displacement of his whole journey ? A.25 m B.75 m C.50 m D.0 m
answered
Jan 30, 2022
Physics
college
4
votes
109k
views
The side lenghts of a square measures 10x+5. the side lenghts of a triangle are 30x,3x and 6x+30. the square and triangle have the same perimeter. find the perimeter PLEASEEEEE HELPP<333
answered
Dec 26, 2021
Mathematics
college
1
vote
136k
views
What is the Atkins diet?
answered
Dec 10, 2021
Health
high-school
6
votes
193k
views
What does the farmhouse become after Mr. jones leaves
answered
Nov 24, 2021
English
high-school
1
vote
119k
views
Suppose you start with an empty queue and perform the following operations: enqueue 1, enqueue 2, dequeue, enqueue 3, enqueue 4, dequeue, enqueue 5. What are the resultant contents of the queue, from front
answered
Oct 11, 2021
Computers and Technology
college
5
votes
105k
views
Which colonial region's economy is described in the following excerpt? "The Tidewater part of this region is very prosperous; there are large plantations which are making people very, very wealthy. Families
answered
Sep 30, 2021
Social Studies
college
1
vote
164k
views
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