Monday
December 5, 2016

Posts by Grace

Total # Posts: 603

chemistry
Calculate a value for the solubility of (NH4)2C2O4H2O in g/100 cm3 at 298 K
May 21, 2014

science
THANKS JACK I GOT 100%!!!!!
May 15, 2014

math
A number from 20 to 30 is drawn at random. Posibility of it not a 23
May 13, 2014

math
how much lottery revenue has been allocated to education in nc
May 1, 2014

Math
HELP A Certain state's lottery LOTTO, is set up so that each player pays $1 per ticket and chooses six different numbers from 1 to 49. if the six numbers chosen match the six numbers drawn each Saturday evening, the player wins the top cash prize. the order in which the ...
April 30, 2014

math
the sum of an integer and the next greater integer is at least 27. find the lesser integer.
April 23, 2014

MATT/116 wk 6 Quiz
Identify the solution(s) of the system of equations, if any. -3x - 4y =2 8y = - 6x - 4
April 21, 2014

math
which figure must have both parallel and perpendicular sides. 1.parallelogram 2. rectangle 3. rhombus 4. right triangles
April 10, 2014

Chemistry
Write the balanced chemical equation for each of the following. (Use the lowest possible coefficients. Include states-of-matter at 1 atm and 25unknown_prefixC in your answer.) (b) the reaction of magnesium metal and hydrobromic acid
April 2, 2014

Chemistry
Write the balanced chemical equation for each of the following. (Use the lowest possible coefficients. Include states-of-matter at 1 atm and 25unknown_prefixC in your answer.) (a) the dissociation of solid magnesium hydroxide in water
April 2, 2014

Chemistry
Write a balanced chemical equation that represents the self-ionization of water. (Use the lowest possible coefficients. Include states-of-matter at 1 atm and 25°C in your answer.)
April 2, 2014

Chemistry
How many milliliters of 0.326 M HCl would be required to titrate 5.48 g KOH?
April 1, 2014

Math
GB=7*9*12=756 cu. in. LB=10*10*15=1500 cu in. 1500-156=744 cu in. Hope this helps everyone :)
March 30, 2014

Chemistry
What are the molality and mole fraction of solute in a 32.3 percent by mass aqueous solution of methanol (CH3OH)? molality = ?m mole fraction =
March 13, 2014

science
Besides if your not cheating then why are you on this site..?
March 12, 2014

science
Looking for only the answer is cheating, seeking for help is seeking for help, (If) they are cheating, its their choice, and you must not be very mature if your going to tell on them.
March 12, 2014

chemistry
In the laboratory a student finds that it takes 20.7 Joules to increase the temperature of 11.0 grams of solid platinum from 20.5 to 35.8 degrees Celsius. What is the specific heat of platinum she has measured.
March 11, 2014

science
I got 100% too! Thanks you!
February 27, 2014

Chemistry
Possible Sources of error in a reaction or sodium bicarbonate and acetic acid. Also known as baking soda and vinegar.
February 25, 2014

Chemistry
When copper(II) oxide is heated in the presence of hydrogen gas, elemental copper and water are produced. What mass of copper can be obtained if 34.0 g copper(II) oxide is used?
February 24, 2014

Chemistry
In 1901, Thomas Edison invented the nickel-iron battery. The follwing reaction takes place in the battery. Fe(s) + 2 NiO(OH)(s) + 2 H2O(l) Fe(OH)2(s) + 2 Ni(OH)2(aq) How many mole of Fe(OH)2, is produced when 3.70 mol Fe and 6.95 mol NiO(OH) react?
February 24, 2014

SCIENCE HELP ASAP! :)
I took the quiz- I'm from connections- but the answers are 1.C 2.B 3.C 4.A 5.C 6.A 7.B 8.D 9.A 10.A Welcome :)
February 19, 2014

chemistry
a 2.52-g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess O to yield 4.23 g of CO2 and 1.01 g of H2O as the only carbon and hydrogen containing products respectively. Another sample of the same compound, of mass 4.14 g, ...
February 15, 2014

math
In the basketball game, Sarah made three times as many 2-point shots as 3-point shots. She made 8 shots in all. How many 2-point shots did she make?
February 13, 2014

SCIENCE --- CHECK MY WORK PLS
Got em! Thank youuu!
February 3, 2014

Science
Thank youuuu :D
January 29, 2014

Math #rd grade
Thank you! It was worded so weird I didn't know what they wanted. : )
January 14, 2014

Math #rd grade
Bryan has 3 nickels, 3 dimes, and 2 quarters. What fraction of the coins is either a dime or a quarter? There is a space for only 1 fraction answer.
January 14, 2014

8th Grade Earth Science Help?
What was the answer?
January 14, 2014

Spelling
What is the antonym of brandishing? a) furbishing b) concealing c) defacing d) galvanizing
January 8, 2014

Math help ms sue.
I wouldn't trust salted caramel..
December 16, 2013

us history
How did immigrants regard public education? a. as an aid to assimilation b. as a threat to cultural heritage c. as a path to advancement d. all of the above
November 25, 2013

English
I have the sentence: Kyle seems calm despite his situation. Kyle is the subject, seems is the being verb, calm is a subject complement adjective that describes Kyle. My question is, is "...despite his situation" an adverb phrase? Is it describing calm or seems? Thanks,
October 25, 2013

math
In a class of 40 students, 27 like math and 25 like Filipino. At most how many students do not like at least one of these subjects?
October 22, 2013

chemistry
a tuning fork produces a sound of musical note middle C. It moves back and forth 256 time each second. What is the frequency of the tuning fork?
October 21, 2013

grammar
can you explain the predicate and complete predicate in a sentence
October 3, 2013

Geography
Why do the trees drop their leaves in the fall?
October 2, 2013

7th Grade
What we're learning? mostly cells and living organisms- pretty insane stuff (:
September 16, 2013

7th Grade
Hi, In science we're mostly earning about everything inside your body like cells and chromosomes.
September 16, 2013

Geometry
The peremiter of triangly rst is 40 what is the perimeter of triange xyz
September 8, 2013

calculus
After solving with A=(-1,2) x^2+2x^2+x+1 got 119/12a pls where did i get it wrong. And with -[(-55)] x^2-25dx i got -50 pls am i correct
September 7, 2013

calculus
find the area enclosed between the x-axis and the curve, if y=x^2-25 for (-5) is less than or equal to x less than or equal to 5
September 6, 2013

calculus
find the area enclosed between the x-axis and the curve, if y=x^3 and the straight line y=x
September 6, 2013

calculus
find the area enclosed between the x-axis and the curve, if y=x^3+2x^2+x+1 between x=-1 and x=2
September 6, 2013

calculus
Determine l= 2e^xdx, given that l=50.2, when x=3
September 6, 2013

calculus
int e^5xsin3xdx =
September 6, 2013

calculus
int dx/3sinx+4cosx dx =
September 6, 2013

calculus
int x^2/(x-2)(x^2+1)dx
September 6, 2013

physics
A car is traveling at 95km/hr. the driver steps on the brakes and the car comes to a stop in 60m. What is the car's deceleration?
September 5, 2013

geometry
Given that r1=6i-8j+2k,r2=4i+5j+7k,r3=-2i+j+6k is a vector. Find r1r2,r2r3,r3r1(a)30,21,-8(b)26,23,8(c)24,19,-7(d)19,27,7
August 30, 2013

geometry
if U=i+3j-2k and V=4i-2j-4k are vectors find U.V, 3U+V& (2U+V).(U-2V) (a)6,10,4(b)4143(c)11,4,5(d)5,11,6
August 30, 2013

physics
Two charges Q 1 =500/mu(C) and Q 2 =100/mu(C) are located on the XY plane at the positions r1=3/vec(j)m and r2=4/vec(i)m. Find the force exerted on the Q2(a)14.4/vec(i)+10.8/vec(j)(b)14.4/vec(i)-10.8/vec(j)N(c)10.8/vec(i)-14.4/vec(j)N(d)10.8/vec(i)+14.4/vec(j)N
August 28, 2013

physics
Two large horizontal metal plates are separated by 4mm. The lower plate is at a potential of (-)6v.What potential should be applied to the upper plate to create field strength of 4000v/m upwards in the space between the plates?(a)(+)22(b)(+)10(c)(-)10(d)(-)22
August 28, 2013

World History
I agree that it was B. The Rise of Religion.
August 26, 2013

Probablity
0.18
August 26, 2013

Social Studies
the farming are different because in new England in the winter its very cold so they can't pant in the winter, but in southern colonies it is mild in the winter so the can farm a little.
August 23, 2013

Math
nn jhb
August 20, 2013

Math.....
16
July 16, 2013

Math
tom had 18 comic books , while Diane and Helen had none. Tom gave 1/3 of the comic books to Diane who passed 1/3 of these books along to Helen. If Tom then gave Helen 1/3 of the books he had left, how many comic books did Helen receive from Tom and Diane
July 3, 2013

Math
An airplane traveled a distance d in t hours, where r>1, and arrived one hour late. The airplane would have arrived on time if it had traveled at what rate per hour? a. t-1 b. d/t-1 c. d/t+1 d. d/t-1 e. d/t+1
July 2, 2013

Math
Each plant of a certain variety yields 50 seeds in the early fall and then dies. Only 40 percent of these seeds produce plants the following summer and the remainder never produce plants. At this rate, a single plant yielding seeds in 1986 will produce how many plants as ...
July 1, 2013

Language barriers
Females are passive
June 28, 2013

Ganguage barriers
If a child displays discriminatory behavior in the classroom, one should
June 27, 2013

Language and other barriers
An example of an exceptional child is one who
June 27, 2013

World Geography
D. Stopping French nuclear testing in the region. ~ I just took the test ~
June 19, 2013

Technology
Non system disc means
June 17, 2013

Technology
If you want to teach whole classes how to use computers, where is the best place to locate the computers?
June 17, 2013

math
At a point on the ground 80ft from the base of a tree,the distance to the top of the tree is 11ft more than 2 times the height of the tree. find the height.
June 12, 2013

Physics
What happens to the momentum of the truck if sand leaks at a constant rate through a hole in the truck bed while the truck maintains a constant velocity?
May 26, 2013

life orientation
6 ways in which earthquake can impact negatively on one's health
May 14, 2013

math
0.21 x 63 = 13.23
May 9, 2013

Math
A lighthouse is east of a Coast Guard patrol boat. The Coast Guard station is 20 km north of the lighthouse. The radar officer aboard the boat measures the angle between the lighthouse and the station to be 23°. How far is the boat from the station?
May 8, 2013

Math
My question was: "How many students can be chosen from a class of 16 to represent their class at a banquet?" If you could give me the answer, I'd be thankful.
April 17, 2013

Chemistry
When I solve for H^+ I put 1.7 x10^-3 x 0.26. I got 4.42 x 10^-4. My pH is 3.35. Is that right?
April 16, 2013

Chemistry
Substance X (MW=356gm) is a weak acid. Its Ka is 1.7x10^-3. Calculate pH of725ml of the following solutions: a)Containing 0.187 mol of substance x b)containing 127gm of Substance x I have been trying to figure this problem out for hours now and do not get it. Please help me ...
April 16, 2013

Chemistry
Does that mean that I do not need to do an ICE table but just use the HH equation?
April 16, 2013

Chemistry
Calculate the pH of the following buffer solution that resulted from 125ml of 0.1M NH3 with 250ml 0.1 M NH4Cl ( for NH3, Kb= 1.76x10^-5)
April 16, 2013

Chemistry
Calculate the pH of the following buffer solution that resulted from 125ml of 0.1M NH3 with 250ml 0.1 M NH4Cl ( for NH3, Kb= 1.76x10^-5)
April 16, 2013

Chemistry
Three metals P,Q and R form three ionic solids with three nonmetals X,Y, ands Z respectively as follows P2X, QY2, and RZ3. If their molar solubilities are the same, how are their Ksp values related? Please not only explain but write the respective dissociation.
April 16, 2013

algebra 2 (permutations & combinations)
from a standard deck of 52 cards, how many different five-card hands can be drawn?
April 10, 2013

science
tundra
April 4, 2013

Math
What property is this? 4(7+9)=(4x7)+(4x9)
April 2, 2013

Math
One half of 9.76
April 2, 2013

Math
The sunglasses that Ramon wants to buy are 50% off the original price of 85$ .How much did he have to pay?
April 2, 2013

Math
What is a attribute?
April 2, 2013

Chemistry
When 50.0ml of 1.00M HCl is titrated with 1.00M NaOH, the pH increases. calculate the difference in pH of the system when you add 49.99ml NaOH and 50.01ml of NaOH. Please work out detailed steps.
March 29, 2013

Chemistry
You have two buffer solutions 1) weak acid and its conjugate base 2)weak base and its conjugate acid. Write explicitly ( considering generic formula for acid and base) the equations of neutralization when you: a) add strong acid and strong base 1) b) add strong acid or strong ...
March 29, 2013

Math
6 quarters, 4 dimes, 3 nickels, 10 pennies. what is the probability you will get at least one of each coin in change of 1 dollar
March 26, 2013

chemistry
what is the total heat lost if you have 8 grams of copper and the temperature changed from 43°C to 36°C
March 24, 2013

Statistics
A national caterer determined that 87% of the people who sampled their food said that it was delicious. A random sample of 144 people is obtained from a population of 5000. The 144 people are asked to sample the caterer's food. If sample proportion, P^, is the sample ...
March 22, 2013

NJHS (essay)
hi, i'm currently applying for the national junior honor society, and i'm working on my essay. any ideas what i should include??? ps. i have no leadership experience and the section is blank! D:
March 20, 2013

Statistics
Suppose a basketball player is an excellent free throw shooter and makes 90% of his free throws (i.e., he has a 90% chance of making a single free throw). Assume that free throw shots are independent of one another. Suppose this player gets to shoot three free throws. Find the...
March 17, 2013

geometry
The answers are 1-B 2-C 3-D 4-A 5-C 6-B 7-B! I took the quiz so these answers are 100% accurate.
March 16, 2013

social studies
Are any of you from Wisconsin connections academy?
March 11, 2013

Basic Math Venn Diagram
Hi! Having a lot of trouble with this one problem. The venn diagram problem is n(U)-n(B). I realize I did not post the venn diagram, I just need to know how to solve that type of problem using a venn diagram! Help would be greatly appreciated. : ) Thank you so much!! God ...
March 7, 2013

Math
Thx that really helped😄😃😜😝👍👍❕👏🎓🆗🆕🔝🆒 freind bump🆙
March 7, 2013

Math
I don't know what 4r=96 means. Also I don't know what 51=3n means!😰😁😱😨📝HELP! It's due tomorrow
March 7, 2013

Physics
A uniform ladder of 5.0 m long and 12 kg is leaning against the wall (contact with the wall = point b, contact with the floor = point a). The height from the ground to point b is 4m . The wall is frictionless but the floor is not. A painter of 55 kg climbs 75% of the way up ...
February 24, 2013

math
Compatible numbers, bench mark fractions, round
February 12, 2013

MATH
if 5 times a certain integer ìs subtracted from twice the square of the integer the result is 63. find the integer
February 8, 2013

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