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A gas cylinder contains exactly 15 moles of oxygen gas (O2). How many molecules of oxygen are in the cylinder? 4.01 × 1022 molecules 6.02 × 1023 molecules 9.03 × 1024 molecules 2.89 × 1026 molecules
answered
Mar 8, 2020
Chemistry
middle-school
3
votes
186k
views
Question #1) Write the inverse, converse, and contrapositive of the following conditional statement. Determine the truth value. If you live in Tucson, then you live in Arizona. Inverse: Truth Value: Converse:
answered
Jan 17, 2020
Mathematics
high-school
4
votes
79.4k
views
Caliph Abu Bakr,one of the Four Rightly Guided Caliphs,led the region in 634 CE.for which of the following statements does this map provide?
answered
Nov 19, 2019
History
high-school
6
votes
66.5k
views
Four-year-old adi takes his mother's keys from her purse and hides them in the closet. When his mother comes into the room, adi giggles because he knows that his mother will look in her purse for the keys.
answered
Oct 1, 2019
Social Studies
high-school
3
votes
232k
views
The Congress shall have Power To . . . make all Laws which shall be necessary and proper for carrying into Execution the foregoing Powers, and all other Powers vested by this Constitution in the Government
answered
Aug 15, 2019
History
middle-school
1
vote
54.5k
views
The half-life of a specific element was calculated to be 5,200 years. What percentage of a sample of the pure element will remain after two half-lives?
answered
Jul 18, 2019
Chemistry
college
1
vote
77.3k
views
Sandy works at a clothing store. She makes $9 per hour plus earns 10% commission on her sales. She worked 80 hours over the last two weeks and had a total of $2,372 in sales before taxes. Which of the
answered
Apr 19, 2019
Mathematics
middle-school
2
votes
73.7k
views
Joan has selected a narrative design for her speech, as she wishes to relate a lengthy parable to highlight a moral issue. as she begins developing her speech, joan realizes that the prologue must ______.
answered
Mar 29, 2019
Social Studies
college
6
votes
153k
views
The prevailing westerlies are winds found
answered
Mar 21, 2019
History
college
2
votes
230k
views
What is the net force of an object equal to
answered
Dec 8, 2018
Physics
college
4
votes
168k
views
Which structures are found in both animal and plant cells? Check all that apply.
answered
Nov 12, 2018
Biology
high-school
2
votes
41.7k
views
How much longer is 3 meters than 3 yards?
answered
Sep 13, 2018
Mathematics
middle-school
4
votes
105k
views
Which inenquality is reprensented by the number line above
answered
Jul 25, 2018
Mathematics
college
6
votes
132k
views
How are eubacteria helpful
answered
Mar 17, 2018
Biology
high-school
2
votes
68.8k
views
The long English tradition of _____ figured prominently in the founding fathers' discussion of the ownership of firearms. The Amendment, the Theory, and the Courts: Select the best answer from the choices
answered
Feb 27, 2018
Social Studies
high-school
6
votes
19.6k
views
david is filling five 3/4-quart bottles with a sports drink.his measuring cup only holds 1/4 quart.how many times will david need to fill the measuring cup in order to fill the 5 bottles?
answered
Jul 4, 2017
Mathematics
middle-school
3
votes
18.0k
views
How do you find the answer to 6*3pi but in pi form?
answered
Oct 28, 2016
Mathematics
high-school
4
votes
169k
views
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