Answers by Nicolas Castellanos
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Answers by Nicolas Castellanos

Answers by Nicolas Castellanos
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Simplify: (22 + 34)-2
answered Jan 29, 2019
3 votes
70.5k views
Why is energy lost as it goes from one trophic level to the next? apes?
answered Jul 2, 2018
3 votes
78.6k views
A certain alcohol contains only three elements, carbon, hydrogen, and oxygen. Combustion of a 30.00 gram sample of the alcohol produced 57.30 grams of CO2 and 35.22 grams of H2O. What is the empirical
answered Apr 14, 2018
6 votes
130k views
Out of 30 problems on the test jose got 4 wrong. What percentage did jose get correct?
answered Mar 12, 2018
4 votes
233k views
jim drove 168 miles in 4 hours. if he keep the same pace, how long will if take him to drive 504 miles
answered Feb 12, 2018
4 votes
36.3k views
What is the major difference between the atomizer bulb and a rolling pipet top?
answered Jan 21, 2018
4 votes
51.7k views
Felicia wants to tell her Italian friend, Viviana, how cold it gets in the winter where Felicia lives—down to -17°F. Viviana has no idea how cold that is unless Felicia converts it to degrees Celsius.
answered May 21, 2017
5 votes
156k views
Lisa says that 43 is a 2-digit odd number that is composite. Is she correct?explain
answered Jun 26, 2016
2 votes
223k views
What are four elements on the periodic table
answered Apr 10, 2016
2 votes
206k views
What energy transformations from eating an apple to riding your bike?
answered May 15, 2015
1 vote
53.3k views
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