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Un compuesto tiene la siguiente composición en tanto por cien: 19,3% de Na, y 26,9% de S y 53,8% de O. Su peso molecular es 238.Calcula la fórmula molecular
answered Apr 20, 2021
6 votes
113k views
Injecting Herioin through a needle is the way drug addicts like to use this drug true or false
answered Mar 27, 2021
2 votes
199k views
Are 8(w+6) and 5+8w+1 equivalent expressions? Use substitution to check your answer.
answered Mar 14, 2021
5 votes
195k views
What is the Ka of a 1.9 ~ 10-2 M solution of carbonic acid (H2CO3) with a pH of 3.88? Ka = [ ? ] × 10!?) Helllllp
answered Jan 9, 2021
0 votes
109k views
From the top of the hill , the angles of depression of two consecutive kilometer stones due east are found to be 30 and 45 degrees, find the height of the hill
answered Dec 9, 2020
7 votes
222k views
Due to evaporation, the water Wesley's aquarium dropped 2 cm a weeks in july. What integer represents the change in water level during the three-weekmperiod?
answered Jun 24, 2020
4 votes
32.7k views
The members of the Federal Reserve’s Board of Governors a. are elected to office by the public every fourteen years. b. are nominated by the U.S. Senate banking committee and confirmed by the U.S. house
answered Jun 11, 2020
5 votes
147k views
Miriam lives in New Zealand. She watches the stars nightly. Every evening, all year long, she can see the constellation Crux (the Southern Cross). What term can Miriam use to classify Crux?
answered Feb 20, 2020
3 votes
47.7k views
An ideal gas experiences a change of internal energy of 284 J/kg when its temperature is increased by 12oC (at a constant volume). What is its specific heat
answered Jan 8, 2020
2 votes
225k views
It has been calculated that the average baby uses 3528 nappies which end up in landfill sites. There were 698,512 births last year in the UK. By rounding these figures to 1 significant figures, estimate
answered Jul 19, 2019
5 votes
42.0k views
Human body temperatures are normally distributed with a mean of 37.0 degrees and a standard deviation of 0.35 degrees. If a sample of 148 people is selected, determine the expected number of people in
answered Apr 23, 2019
3 votes
133k views
you need to count all of the loaves of bread in the front area . there are 22 loaves of white bread, 17 loave of wheat bread, and 19 gourmet breads.what is the total number of loabes?
answered Jan 23, 2019
3 votes
141k views
Helpppp There are approximately ________ known elements, each with its own properties. A. 65 B. 110 C. 215 D. 350
answered Sep 26, 2018
4 votes
122k views
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