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Hydrazine, N2H4 , has been used as a rocket fuel because its reaction with oxygen is extremely exothermic: N2H4(l) + O2(g) -> N2(g) + 2H2O(g) H=-534.0kJ The enthalpy change for the vaporization of water
answered
Dec 26, 2023
Chemistry
high-school
4
votes
206k
views
The area of Eh Kri's rectangular backyard, in square feet, can be found using the expression 2(4x + 5y). Use the distributive property to write an equivalent expression for the area of Eh Kri's backyard.
answered
Oct 18, 2023
Mathematics
high-school
3
votes
5.7k
views
What is the speed of the person on the bicycle relative to the person jogging on the sidewalk Bike is going 5 m/s and walking is going 2m/s10 m/s7 m/s5 m/s3 m/s
answered
Aug 10, 2023
Physics
college
5
votes
114k
views
Explain the roles of TWO of these early leaders of the Civil Rights Movement. You must use complete sentences when writing your response. Booker T. Washington W.E.B. Dubois Alonzo Herndon Plz I really
answered
Apr 14, 2023
History
high-school
7
votes
195k
views
Morvinia raised $15 each Kilometer she walked while participating in walkathon. Her goal is to raise a maximum of $800 on Saturday and Sunday. On Sunday, she raised $375. What is the least number of kilometers
answered
Mar 5, 2023
Mathematics
high-school
3
votes
176k
views
Which equation is best to use to determine the zeros of the graph of y = 4x^2 – 8x - 5? (2x + 1)(2x - 5) = 0 (2x - 1)(2x - 5) = 0 (4x - 1)(x - 5) = 0 (4x + 1)(x - 5) = 0
answered
Feb 7, 2023
Mathematics
high-school
5
votes
163k
views
3. Classify the following plants along with two main characteristics: al Cycus b) Bamboo c) Lemna d) Paddy a) Sugarcane f) Pinus g) Mango b) Mustard
answered
Aug 14, 2022
Chemistry
high-school
1
vote
220k
views
A polis is a Greek city-state. True or False
answered
Aug 12, 2022
History
high-school
9
votes
91.1k
views
A rectangular prism gift box has dimensions of 2.5 inches and 7 inches in 9 inches how much wrapping paper will it take to cover the gift Boxxx round the answer to the nearest 10th
answered
Jul 21, 2022
Mathematics
college
3
votes
219k
views
1 Silently he crept through jagged thornbushes. Bare feet moved swiftly over hot, arid soil to the edge of a waterhole where the kudu was drinking. The great animal suddenly looked up, spiral horns curving
answered
May 28, 2022
English
high-school
2
votes
14.6k
views
What is the overall rate order of the following reaction a + 2b → c + d ? a zero b first c second d third
answered
May 11, 2022
Chemistry
high-school
1
vote
189k
views
Besides hydrogen and oxygen, what is required to produce the chemical reaction that yield water
answered
Dec 22, 2021
Social Studies
college
5
votes
217k
views
Which one of these do you need to become president of the US ?
answered
Dec 20, 2021
Computers and Technology
high-school
4
votes
135k
views
Jay remembers someone giving her a gold ring.( into passive voice)
answered
Oct 23, 2021
English
middle-school
3
votes
99.0k
views
According to the article, what did the students in Utah and New Jersey learn through Bridge the Divide's work?
answered
Oct 11, 2021
History
middle-school
6
votes
97.7k
views
ANSWER ASAP PLZ!!!!! Based on the food chain diagram above, what percentage of the energy an organism takes in is used by that organism or released as heat or waste? 1) How might the size of the organism
answered
Aug 22, 2021
Biology
middle-school
1
vote
120k
views
Marcy owns a trucking company that hauls goods all over the country. Wilson contracts with Marcy's company to transport ten tractor-trailer loads of goods from Ohio to Texas. After delivery of the goods,
answered
Jun 10, 2021
Business
high-school
6
votes
40.0k
views
QUESTION 5 What is a mixture? O Contains one kind of particle and they DO NOT keep thier own identity and properties. O Contains one kind of particle. O Contains MORE than one kind of particle and they
answered
May 16, 2021
Chemistry
college
3
votes
79.5k
views
List all of the subsets of the set {1, 3, 5}
answered
May 3, 2021
Mathematics
college
4
votes
128k
views
What was the one effect of the french and indian war on great britians american colonies
answered
May 2, 2021
History
high-school
3
votes
13.3k
views
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