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Can two different substances have the same percent composition by mass?
asked
Jan 21, 2022
Chemistry
high-school
1
answer
1
vote
71.3k
views
A one-month European call option on Bitcoin is with the strike price of $8,505, $8,705, and $8,905 are trading at $600, $500, and $415, respectively. An investor implements a butterfly spread (i.e., she
asked
Sep 10, 2021
Business
college
1
answer
0
votes
11.3k
views
Holaa quien me puede decir donde puedo ver toda la saga de harry potter en español :) graciass
asked
Sep 5, 2021
Spanish
high-school
2
answers
1
vote
54.1k
views
Seven times a number plus three times another number equals negative one. The sum of the two numbers is negative three. What are the numbers’?
asked
Aug 4, 2021
Mathematics
middle-school
2
answers
3
votes
133k
views
The enthalpy of vaporization of water at 373 K and 1 bar is 40.7 kJ/mol and the molar heat capacities are 75.3 J/(mol K) for liquid and 33.6 J/(mol K) for gaseous water. Find the enthalpy of vaporization
asked
Jul 21, 2021
Chemistry
college
1
answer
5
votes
47.9k
views
Andreas drew the model below to represent the equation 20 + 10 = blank x (4 + 2). A model with 5 rows of 4 and 5 rows of 2. What is the missing value in Andreas’s equation? 2 4 5 6
asked
Jul 16, 2021
Mathematics
middle-school
2
answers
4
votes
4.2k
views
Vaporization is the reserve of what?
asked
Apr 22, 2021
Biology
high-school
1
answer
4
votes
47.1k
views
Answer all of these please, I’m giving all my points away.
asked
Mar 20, 2021
History
college
2
answers
3
votes
32.2k
views
Tom takes a taxi to work. There is a flat rate of $2.20. Each mile is calculated at $1.50. If Tom's final cost for the taxi is $12.70, how many miles did he travel?
asked
Mar 7, 2021
Mathematics
high-school
1
answer
3
votes
52.9k
views
(07.06 MC) Which of the following best explains the impact that pathogens in the environment might have on one's body? (1 point) They enter the body and make it unable to form antibodies. They trigger
asked
Oct 9, 2020
Biology
middle-school
1
answer
0
votes
134k
views
The author or The Odyssey, an epic written in 700 B.C., was____
asked
Oct 3, 2020
English
middle-school
2
answers
3
votes
154k
views
The surface area of a plastic ball is 196 pi. A sponge ball has a radius twice that of the plastic ball. What is the surface area of the sponge ball? A. 9,604 pi B. 993 pi C. 784 pi D. 546 pi Explain your
asked
Sep 12, 2020
Mathematics
middle-school
1
answer
1
vote
134k
views
A Cassegrain telescope A.uses a concave mirror as its primary B.has a hole in the center of its primary mirror C.uses an eyepiece along the line of the objective D.All of the above
asked
Apr 3, 2020
Physics
middle-school
1
answer
2
votes
60.7k
views
PLEASE HELP ME!?!?! The equation of a standard pitcher’s mound in baseball is (x+5)^2 + (y+7)^2=81 The center the pitcher’s mound is ( , ).
asked
Mar 28, 2020
Mathematics
middle-school
1
answer
0
votes
148k
views
How many moles of n2(g) would contain exactly 4.0 moles of nitrogen atoms?
asked
Dec 7, 2019
Chemistry
high-school
2
answers
5
votes
166k
views
What abolitionist rented a house from the husband of the woman for whom Grace Park in Akron, Ohio, is named
asked
Nov 28, 2019
History
middle-school
2
answers
4
votes
145k
views
How were some of the cycladic figurines placed in/near the graves?
asked
Oct 5, 2019
History
high-school
1
answer
5
votes
207k
views
Which of the following relationships can be proved and why?
asked
May 20, 2019
Mathematics
middle-school
2
answers
4
votes
83.8k
views
Define folk culture and popular culture.
asked
Feb 15, 2019
Social Studies
high-school
2
answers
4
votes
120k
views
A bike rider travels 58 miles 5 hours. (a) What is the unit rate that describes the bike ride’s speed in miles per hour?
asked
Sep 24, 2018
Mathematics
high-school
1
answer
4
votes
103k
views
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