# Raul

Popular questions and responses by Raul
1. ## Chemistry

One reaction of iron with hydrochloric acid is represented by the following thermochemical equation. Fe(s) + 2HCl(aq) ? FeCl2(aq) + H2(g); (Delta)H°= –87.9 kJ How much heat is liberated at constant pressure if 0.215 g of iron reacts with 40.4 mL of

2. ## Chemistry

A 0.464 gram sample of a metal, M, reacts completely with sulfuric acid according to: M(s) +H2SO4(aq)=MSO4(aq)+H2(g) A volume of 211 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level.

3. ## science

4.4 g of CO2 contains how many liters of CO2 at STP ? a) 2.4 litre b) 2.24 litre c) 44 Litre d) 22.4 litre

4. ## Calculus

The position of a particle moving on a horizontal line is given by s(t)=2t^3-15t^2+24t-5, where s is measured in feet and t in seconds. a: What is the initial position of the particle? b: What is the average velocity of the particle on the interval

5. ## Math

Surface area of each solid .round to THE nearest tenth if necesaria. 6cm 5.2cm 7cm 6c

6. ## history

what do you think contributed to the jump in productivity among american workers during world war 2?

7. ## history

why did the national debt rise so quickly during world war 2?

49. ## Geometry

wats the areas of a rectangle... base of : 5m high of: (4a+b)m

50. ## Math

Describe in your own words how to solve a linear equation or inequality

51. ## Chemistry

which is more concentrated a 1 liter solution containing 30 g of NaCl or a 1 liter solution containing 30g of KCl

52. ## science

the length of the string is 9.984cm.What is the length of the string to the nearest tenth of a centimeter

53. ## algebra

what does x equal in the equation 3x-35=9x-59

54. ## physics

A current I = 16 A is directed along the positive x-axis and perpendicular to a magnetic field. A magnetic force per unit length of 0.15 N/m acts on the conductor in the negative y-direction. Calculate the magnitude and direction of the magnetic field in

55. ## philosophy

write a 350-700 word response describing how Socrates’, Plato’s, and Aristotle’s philosophies relate to each other

56. ## Us History

The Lousiana Purchase removed a major point of contention between the United States and a European power but left many others. Which areas of possible conflict remained, and what were the sources of these potential conflicts?

57. ## I donth Get it !...US History

Did the differing circumstances of Maryland and Virginia's founding affect the course of their respective development? If so, how?

58. ## Us History

What problems dogged the early settlements of the Chesapeake region?

59. ## hystory

Why did Europeans press westward during this period, instead of concentrating in the more easily defended coastal towns?

60. ## algebra

how do i graph this quadratic funtion y=x(squared) + 4x - 4

61. ## Maths

solve the equation: 4cos2*theta + 3cos*theta + 3 = 0 for values between 0 and 180 degrees If that is cosine squared in the first term, you have a quadratic equation. Normally cosine squared would be written in ASCII as cos^2 Theta.

1. ## algebra

A person asked Does this Trinity go to harvest Church for youth group? and they awnserd yes that what

posted on May 7, 2020
2. ## algebra

In 5th in Mrs.Veronacas class.

posted on May 7, 2020
3. ## MATH

What are the odds in favor of randomly drawing the letter Upper N from the letters in the word REFERENCE

posted on May 3, 2020
4. ## music

This might be a little late but the answers are 1. A 2. C 3. B

posted on March 2, 2020
5. ## math

I need help please I just got homework and I don't understand are all my problems 7/10 2/5 2/3 3/9 8/22 1/2 16/24 12/29 15/45 I have more but I think its a waste of time for you

posted on February 21, 2019
6. ## Help SS!

Thank you

posted on December 19, 2018
7. ## vocabulary

dull

posted on April 28, 2018
8. ## vocabulary

Cruel

posted on April 28, 2018
9. ## Finance

543.98

posted on October 9, 2017
10. ## Geometry

65.3

posted on September 3, 2017
11. ## science

don't know

posted on November 14, 2016
12. ## Political Science

yes

posted on June 9, 2016
13. ## FINANCE

Q1. FV= (1000*.09)+1000= 1090, PV= -1000, n=6, pmt= 140. Cpt I/y= 15.027%. They should be happy because they were making a less (14%) than the 15.027%. Q3. The current yeild is $80 (the coupon) divided by$901.40 (The current market value). Sorry my

posted on April 30, 2016
14. ## Finance

fv= (1000*.09)+1000= 1090, PV=-1000, n=6, pmt= 140 cpt i/y= 15.027%

posted on April 30, 2016
15. ## Chemistry

The following system is at equilibrium: A(s)+4B(g)⇌C(g) Classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the net reaction. (Add more A)(Remove some A)(Double the

posted on April 21, 2016
16. ## physics

Polarized light is incident on a sheet of polarizing material and only 22% of the light gets through. Find the angle between the electric field and the transmission axis

posted on April 4, 2016
17. ## science

I also go to connexus

posted on February 16, 2016

Me TOO.

posted on February 8, 2016
19. ## Maths

20,00 will be the answer to the question

posted on November 11, 2015
20. ## social studys

i think is 3

posted on October 2, 2015
21. ## Math

Oh I'm stupid, I actual answer is the hundredths is divided into 2000 peices, and then you take something and another something, put those poopies together and boomshakalaka!

posted on September 16, 2015

24r1

posted on May 14, 2015
23. ## algebra (check my answers?)

looks good

posted on February 27, 2015

36 / 1.3 =27.69(round up) 28 color pictures

posted on February 27, 2015

11/42

posted on February 27, 2015
26. ## math

8 x .50 =4 + 8= $12 12 x .20 =2.4 -12=$9.60 9.60 x .15 = 1.44 + 9.60= $11.04 11.04 x .60 = 6.62 -11.04=$4.42 final price.

posted on February 27, 2015
27. ## math

You have to multiply the 20 min by the number of student in the class which are 25. Then take the minutes and devide them by the number of minutes in an hour. 20 x 25 = 500 minutes 500/60 = 8.3333 (round down) 8 hrs

posted on February 27, 2015

Thank you Reed and Nour

posted on February 27, 2015

:) lol. Thanks again

posted on February 27, 2015
30. ## Accounting

$273.49 x .35= 95.7215 273.49 + 95.7215=$369.21

posted on February 27, 2015
31. ## Accounting

$5.12 plus 55%=$7.94 price per square yard.(rounded up) 5.12 x .55= 2.816 2.816 + 5.12= 7.94

posted on February 26, 2015

I mean the 2/3 of the musicians are girls.

posted on February 26, 2015

Steve, Thank you. THat is part of the question that is not needed to solve the problem.

posted on February 26, 2015
34. ## English

is this correct parallel sentence: When the movie Star Wars premiered in 1977, it was both surprising and revolution in its special effects.

posted on January 29, 2015
35. ## Math

Sorry for 2 messages. I accidently hit the send button while i was typing!XD

posted on September 23, 2014
36. ## Math

the hundredths grid is divided into 100 pieces. Now, you shade a whole grid completely. Then , you shade in 65 pieces of another grid to show 1.65. Then, show another grid with 98 pieces shaded in. Don't forget to put in the subtraction sign!! And now your

posted on September 23, 2014
37. ## Math

the hundredths grid is divided into 100 pieces. Now, you shade a whole grid completely. Then , you shade in 65 pieces of another grid to show 1.65.

posted on September 23, 2014
38. ## math prob.

Why is 72 on monday

posted on December 9, 2013
39. ## geometry

im still not sure on how to do this

posted on May 8, 2013