# Posts by jenna

Total # Posts: 659

chemistry
How many grams of chlorine gas could be produced by the decomposition of 58.5g of sodium chloride according to the following equation.? 2NaCl = 2Na + Cl2

algebra
Find the mean for each set of data. Round to the nearest tenth if necessary 12, 20, 8, 15, 16, 14, 7, 5, 11, 8, 14 i realy need help on this i keep on getting 12 as the median but the answer choices don't have 12, could u guys help me please

The Calvin Cycle
How many molecules of CO2 will the calvin cycle consume in generating 2 molecules of fructose 6-phosphate? How many molecules of ATP will the calvin cycle consume in generating 2 molecules of fructose 6-phosphate? How many molecules of NADH will the calvin cycle consume in ...

pleez! science stuff
ohhh! thank you thank you thank you! soooooo much i really need it badly :)

pleez! science stuff
What is the application be on my project which was "me and my class go out and check the soil for organic things and beans and natural stuff + to describe what it looks like what color,shape,texture, and size the things we found are" PLEEZ! help i still have tons of ...

Biochemistry
The malate dehydrogenase reaction, written in the direction as it occurs in the citric acid cycle is: malate + NAD+ → oxaloacetate + NADH + H+ ΔG˚' = +7.1 kcal/mol Calculate the Keq and ΔG (in kcal/mol) for this reaction at the physiologic ...

WRITING
Like what bad stuff would happen to the school teachers and people

WRITING
Help me get examples of what would happen if there were fiel trips everyday for school for free. Help me come up what bad stuff would happen

WRITING

Probability math
From a deck of 52 cards, 7 are drawn randomly without replacement. Let X and Y be the number of hearts and spades respectively . a) What is P(X > or = Y)?

Probability
Consider the experiment of simultaneously tossing a die and a coin. Let X denote the number of heads and Y denote the number of spots showing on the die. a)construct a two-way table for the joint pdf b)Let Z=X+Y . Use the joint pdf to find the distribution or Z.

math
What is the ratio formed between two parallelograms one is 2 inches by 6 inches and the other is 6 inches by 18 inches?

physics
we know that the speed of light in a vacuum is 3.0 x 10^8 m/s (18,000 mi/sec). If light travels through thick plastic with a speed of 1.75 x 10^8 m/s, what is the index of refraction through plastic?

physics
we know that the speed of light in a vacuum is 3.0 x 10^8 m/s (18,000 mi/sec). If light travels through thick plastic with a speed of 1.75 x 10^8 m/s, what is the index of refraction through plastic?

physics
An object is located 87.6 cm from a concave mirror that has a focal length of 17.0 cm. Where is the image located?

Chemistry
Nitrogen dioxide, NO2, dimerizes easily to form dinitrogen tetroxide , N2O4 : 2NO2<===>N2O4 a) Calculate Change in reaction G* and K for this equilibrium. b) Calculate the (e) (the measure of the progress of the reaction) for this equilibrium if 1.00 mol NO2 were present...

chem help
if 20 ml of .025M Formic acid is combined with 30 ml of distilled water and titrated with .10 M NaOH. What is the theoretical endpoint (equivalence point)

Chemistry
if 20 ml of Formic acid is combined with 30 ml of distilled water and titrated with .10 M NaOH. What is the theoretical endpoint (equivalence point)

Social Studies
Can you?

Social Studies
Hollywood sign. You can just look these up on Google :D There is a lot of answers

Social Studies
Thanks (:. What famous sign was first erected in 1923 in the state of California?

Social Studies
In 1950, what west coast team became an official member of the NFL?

Physics
An airplane pilot sets a compass course due west and maintains an airspeed of 221km/h . After flying for a time of 0.490h, she finds herself over a town a distance 125km west and a distance 13km south of her starting point. FIND THE MAGNITUDE OF WIND VELOCITY. v = ___ km/h

Astronomy
Star 'A' has twice the radius of star 'B'. The ratio of the surface area of star 'A' to the surface area of star 'B' is equal to 8 4pi 2 1/8 4

UCSD
A jetliner is moving at a speed of 230 m/s. The vertical component of the plane's velocity is 36.4 m/s. Determine the magnitude of the horizontal component of the plane's velocity.

physics
A jet travels at 490 m/s. How long does it take to travel 227m? Answer in units of s

Math
solve for x Pc/x = c/p

physics
I am looking out a window that is 1.3m tall. A water balloon suddenly drops across the entire length of the window in .22 seconds. How far above the window was it dropped?

chemistry
At 518 degress celsius that rate of decomposition of a sample of acetaldehyde, initially at a pressure of 363 torr, was 1.07 Torr/sec when 5% had reacted, and 0.760 torr/sec when 20% had reacted. What is the order of the reaction?

Science
At 518 degress celsius that rate of decomposition of a sample of acetaldehyde, initially at a pressure of 363 torr, was 1.07 Torr/sec when 5% had reacted, and 0.760 torr/sec when 20% had reacted. What is the order of the reaction?

Math
A turtle is at the bottom of a 12 foot well. Each day it crawls up 3 feet, but each night it slips back 2 feet. After how many days will the turtle reach the top of the well? ANSWER: The turtle will reach the top of the well after [ ] days... Thanks

Biochemistry
Which of the following peptide fragments would you expect to find buried in the center of a water soluble protein? Explain your answer. a) DEGKRGDK b) ALVWIFLF

Math
If you are getting a B in everything else in this class but you don't do any of the news item write ups(which are 9% of your grade, then will your final grade be a B? If not a B, then what will your final grade be?

Math
Would this be a positive, nenegative or no correlation? The number of calories burned and the time spent exercinsing

Total tickets sold\$1625. Adults \$7,kids \$3. Twice as many kids as adults bought tickets. How many adults and kid tickets were sold.

Total tickets sold\$1625. Adults \$7,kids \$3. Twice as many kids as adults bought tickets. How many adults and kid tickets were sold.

Math
Write the following without negative exponents: (a^-1 + b^-1)^-1

Math
Solve the following equation for t : 3/t + 2/m = 2

college math
Using correct mathematical notation and symbols, express the following in set-builder notation: Z = {16, 17, 18, 19, 20}

Math
Given A = {1, 2, 3}, B = {3, 4, 5, 6,}, and C = {3, 5, 7}. Evaluate each set a) A ∩ B b) A U C c) B U C d) (A U B) ∩ C e) A U (B U C) f) (A ∩ B) ∩ C g) (A ∩ B) U C

Math-geometry
Given these sets: A = {3, 4, 5, 6, 7} B = {6, 7, 8, 9} C = {2, 4, 6, 8} List the elements of this set A intersect(B∩C)

Math
Given the following set, select the statement below that is true. V = {a, e, i, o, u} s ∈ V o ∉ V e ∈ V V intersect Ø w ∈ V

Math
Given the following sets, select the statement below that is true. A = {l, a, t, e, r}, B = {l, a, t, e}, C = {t, a, l, e}, D = {e, a, t} B ⊂ C and C ⊆ A C ⊆ B and D ⊂ B D ⊂ A and A ⊂ D B ⊂ A and C ⊂ D D ⊆ A and A ⊂ C

Given the following sets, select the statement below that is true. A = {l, a, t, e, r}, B = {l, a, t, e}, C = {t, a, l, e}, D = {e, a, t}

Math
Given the following set, select the statement below that is true. V = {a, e, i, o, u}

Math
Given the following set, select the statement below that is true. V = {a, e, i, o, u}

Math
Given the following sets, select the statement below that is true. A = {l, a, t, e, r}, B = {l, a, t, e}, C = {t, a, l, e}, D = {e, a, t}

math
so its 225pi sq. in?

math
what is the exact area of a circle with a diameter of 15 inches?

math
i think its 16.49 in^3 right?

math
how many cubic inches of ice cream can an ice cream cone hold (within the cone) if its height is 7 inches and the diameter of its base is 3 inches? give solution accurate to the nearest hundredth.

math
i don't think im getting this problem...would it be 20 * 52 = 1040 mm? PLEASE ASSIST :(

math
im still a little confused with this problem....

math
i think P = a + b + c right? and A = 1/2bh right?

math
find the perimeter and area of a right triangle if the shortest side is 20 mm. and the longest side is 52 mm. include correct units with each part in solution.

math
would i use a^3?

math
how many cubic cm can a cigar box hold if its dimensions are 4 cm. by 14 cm. by 12 cm? include correct units with solution.

math
i thought that was how you solve it. thanks!

math
in a 9 in. sq. cake pan and 1 10 in. sq. cake pan, what is the difference in volume each pan will hold? assume each pan is 3 in. high. show step by step work and correct units with solution.

math
that's what i got. thank u :)

math
exactly how many cubic inches of ice cream can an ice cream cone hold (within the cone) if its height is 6 inches and the radius of its base is 2.5 inches? include correct units with the solution. use "pi" in place of the pi symbol.

math
i am not sure....

math
how many cubic cm can a cigar box hold if its diameter is 4 cm by 10.5 cm by 7 cm?

math
a right triangle has to be 90 degrees right?

math
find the perimeter and area of a right triangle if 1 leg measures 10 ft. and the other leg measures 24ft. show all work please.

math
okay but the options i have to choose from are: a. 26Pi in. b. 6.5Pi in. c. 13Pi in. d. 42.25Pi in. e. 169Pi in. i think it's a. right?

math
the pi is 3.14

math
i am confused??

math
what is the exact circumference of a circle with a diameter of 13 inches?

math
i got that too! thank u :)

math
Find the area of a square if 1 side measures 22 cm. Include correct units with solution.

math
l * w right?

math
Find the area of a rectangle if its length measure 12 cm and its width measures 13 cm. Include correct units with the solution.

Differential Equations
A car is traveling at 70 mph skids 240 ft after it's breaks are suddenly applied. Assuming that the cars breaking system provides a constant deceleration, find that deceleration. How long did it take the car to stop?

global history.
What did people in Ancient Greece trade with other countries? What were the trade routes, what did they trade, and finally, what was the effect on Greece ?

math
A vase in the shape of a sqare based pyramid just fits inside a box in the shape of a square based prism. If the prism has the volume of 720 cm then what is the volume of the vase?

english
What value does Macbeth put on his soul in Act III, Scene I of "Macbeth" by Shakespeare.

Physics
a chain pulls tangentially on a 33.4kg uniform cylindrical gear with tension of 70.1 N. the chain is attached along outside radius at 0.794m from the axis of rotation. starting from rest gear takes 1.59 s to reach rotational speed of 1.08 rev/s. what is total frictional torque...

Physics
A boy of mass 37.8kg. is rescued from a hotel fire by leaping into a firefighters' net. The window from which he leapt was 8.02 above the net. The firefighters lower their arms and he lands in the net so that he is brought to a complete stop in a time of 0.491 s. What is ...

please help me solve these 1. 2√5/8 + 4√3/8 - 1/2√68 2. √4k-5 +1=8 (the radical sign goes over 4k-5) 3. (x+4)*2 /3 =8 4. Write the value of the discriminant of each equation. Then use it to decide how many different real-number roots the equation has. x...

Programming Logic
I need to create a flowchart/psuedocode for a dice game that give you 2 rolls with 5 dice, 3 rolls per game. the computer will roll the 4 dice and calculate your score. my question is...do i need to repeat this 3 times and can i use nested loops and if so..how do i set this up...

physics
Dispersion in a window pane. In the figure on the left, a beam of white light is incident at angle θ = 51° on a common window pane (shown in cross section). For the pane's type of glass, the index of refraction for visible light ranges from 1.528 at the blue end ...

chemistry
5.00 atm

Chem
H2SO4 +NaCO3 > Na2SO4 +Co2 +H2O if 150.0 g Of Sulfuric acids is spilled what is the minimum number of moles of sodium carbonate to complete this reaction?

pre calc
lnX + ln2 = 3

biology / help me
The hemophilia gene is located 12 map units from the red-green colorblindness gene on the X chromosome. Red-green colorblindness is recessive to normal color vision. A woman with normal blood clotting and normal color vision, but whose father was a hemophiliac and whose mother...

The hemophilia gene is located 12 map units from the red-green colorblindness gene on the X chromosome. Red-green colorblindness is recessive to normal color vision. A woman with normal blood clotting and normal color vision, but whose father was a hemophiliac and whose mother...

biology /help
. The hemophilia gene is located 12 map units from the red-green colorblindness gene on the X chromosome. Red-green colorblindness is recessive to normal color vision. A woman with normal blood clotting and normal color vision, but whose father was a hemophiliac and whose ...

Chemistry
An unknown compound X is one of the four compounds listed in the table below. A mixture of X with o-toluic acid melts at 100 degrees Celsius, a mixture of X with benzoic acid melts at 112 degrees Celsius, a mixture of X with phenyl succinate melts at 110 degrees Celsius, and a...

chemistry
Ok now I have to find the mole fraction of the solvent. I know the formula, which is the moles of a substance/ total moles of solution. Is the moles of the substance the number we just obtained? And which is the "total" moles of solution?

chemistry
Sorry the 18.02 is for water.

chemistry
To find the moles of solvent present, would you divide the mass the solvent by 18.02g/mol? I am given this: MM=18.02g/mol

chemistry
How do you find the mass of a solution if you have 1L of 2.5 M MgCl2. I have determined how many moles are present in MgCl2 which was 2.5 and how grams are present which came out to be 238.025g Now I'm asked "What is the mass of the solution and the mass of the ...

Organic Chemistry
What is the major product from the sulfuric acid and Hg(II)-catalyzed hydration ethynylcyclohexane?

math
21girls to 15boys

math
Yes, thank you for thw awswers to my homework.

math
Thanks guys that really helped me on my homework :D im in 5th grade

physics
M*9.8*sin23=540 M*9.8=540/sin23 =1382.02 M=1382.02/9.8 =141.02kg M=141.02kg

Math
a building cast a 235 ft shadow along the ground. the angle of the sun's ray with the ground is 24 degrees. How tall is the building?

eth/125
How do you think slavery influenced the evolution of both Black and White America today?

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