If 100mL of 1mol HCL is mixed with 100 mL of 1mol NaOH, a temp rise of 6.2C occurs. What temp change will be obserbed, if under the same conditions, 10mL of 1mol NaOH is mixed with 10mL 1mol HCL? x Why wouldn't it be the same? One gets 1/10 th of the heat, but has only 1/...
Thursday, February 1, 2007 at 8:33am
Math Help Please (I Am New In This Website)
How do you multiply 367 by 72? the answer depends on your grade. Tell us what Grade in School you are in. Multiply 367 by 2; write down the answer. Multiply 367 by 70; add it to the answer above. Let us know what your answer is and someone here will give you feedback.
Saturday, January 27, 2007 at 7:55pm
Math, Geometry and Physics
An enemy ship is on the east side of a mountainous island. The enemy ship can maneuver to within 2500 meters of the 1800 meter high mountain peak and can shoot projectiles with an initial speed of 250m/sec. If western shoreline is horizontally 300 meters from the peak, what ...
Tuesday, January 16, 2007 at 10:40am
can someone correct this for me please. Statistics. Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C ...
Tuesday, January 9, 2007 at 7:38pm
can someone correct this for me.or teach me if i'm wrong Statistics. Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last...
Monday, January 8, 2007 at 1:45pm
(-mn8)3 would it be: -m^3n^3164 (-mn8)3 = -24mn Without carrots I have no idea where your exponents are. how?I don't get this one? Is this Sandro from Mrs.Pfeiffer's class?What grade are you in? Leo is saying you need to use carets to show an exponent. As you have ...
Wednesday, November 8, 2006 at 5:44pm
Our son's 3rd grade teacher gave out a homework assignment which had the students make a sentence for each of their spelling words and then circle the "noun" in the sentence. We received his homework back from the teacher with the words, "I, you, He", ...
Wednesday, October 25, 2006 at 7:25pm
I'm supposed to design a device that will protect a raw egg, GRADE A, (not that its really important to know what kind of egg it is... LOL) But, it will drop from a 12 FOOT height to a concrete floor. The only materials that I'm allowed is about 9 sheets of "8.5 X...
Friday, October 13, 2006 at 11:20am
I left my McMillian text book for language arts in school today and I have homework on page 2 and 3. I'm in the 6th grade does anyone have that book. I really really need those questions. I don't know if this gives page numbers that correspond with your text or even if...
Monday, September 11, 2006 at 5:04pm
hi, i have a math question that i need help with: when data are non-numerical but can be ordered, such as letter grades, the mean cannot be calculated directly; but both the median and mode can be found. Last year in Ms. Flag's history course, the final grades were 8A'...
Tuesday, August 29, 2006 at 3:17pm
History,business study,tourism,zulu,maths literacy,english and life orientation. Am doing those subject and am in grade 11 I don't knw what career must I take anybody can help me my digit please 0724306682
Monday, August 4, 2014 at 5:08pm
Your friend who was the top learner in your group in grade 9 is no longer interested in his/her studies.You investigated that he/she is not only selling drugs but also drinking heavily during weekends 1.To help your friend you need to put your constructive thinking skills into...
Monday, July 21, 2014 at 1:26pm
Whitney is speaking to four different classes at the local grade school . She will spend m minutes with each class, and she will have to wait 30 minutes before seeing the last group. How many minutes will Whitney spend at the school? Thank you.
Sunday, July 13, 2014 at 7:39pm
A square picture 3 1/2 feet wide hung on the wall. The center of it is to be 4 feet from the ceiling. The top picture is __ feet and ___ inches from the ceiling.
Friday, June 27, 2014 at 2:33pm
Maths literacy,history,life science,english,xhosa,life orantation,geography.
I'am doing grade 11 now and when i passed grd 12 next year.i want to know what caree is good for my subjects ,because i don't know what caree should i take.
Wednesday, June 18, 2014 at 5:27pm
I was wondering for ninth grade, how long should an essay on 3 of Katherina (from taming of the shrew )characteristic be. And how long should each paragraph be.. Mine is not as long as my friends so I was wondering
Wednesday, June 11, 2014 at 10:24pm
I don't know if this one is right or not. I've been stuck on this question for 15 mins and my grade counts on this. 20. In Flanders Fields expresses the speakers belief that (Points : 5) war and its horrors are wrong and evil. the war is necessary and...
Thursday, June 5, 2014 at 8:08am
5th Grade Math
For their first 60 games the Robins had a record of 28 wins and 32 losses. How many of their next 90 games must they win if their total record is to show twice as many wins as losses?
Friday, May 30, 2014 at 8:52pm
7 grade math
Consider two types of nonlinear equations. What unique quality does each possess and how does that quality cause the graph's unique shape? Name two unique examples of these shapes in real-world situations.
Tuesday, May 27, 2014 at 8:29am
Math, grade 10
Two numbers add to 18. If you square the larger number and add 6 times the smaller number you get 163. What are the numbers. Solve with quadratic equation?
Monday, May 26, 2014 at 5:04pm
Last semester, a certain professor gave 24 As out of 237 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.) thank you for giving up your ...
Saturday, May 24, 2014 at 10:44pm
Grade 10 English
i need 3 points of tragedy between the book the Stone carvers and the great gatsby.... i need to write a compasrion essay of tragedy between the two books. please and thank you
Saturday, May 24, 2014 at 3:11pm
A jet plane is flying horizontally with a speed of 500 m/s over a hill that slopes upward with a 3% grade (i.e., the "rise" is 3% of the "run"). What is the component of the plane's velocity perpendicular to the ground? (Assume the +x-direction is up ...
Saturday, May 24, 2014 at 11:45am
5th Grade ADV. Math
Four teams are playing in a tournament. Each team will play each other one more time before the top two teams play the championship game. How many games will be played? Need some help with this mates.
Thursday, May 22, 2014 at 7:18pm
HELP MATH 5th grade
Sam has 3 pets. Monday she uses d cans of pet food. Tuesday she uses 6 cans Wednesday Thursday and Friday uses 4 cans each day How many cans does she use during thse 5 days? which number is not needed to solve problem? 4 3 5 6 - please explain
Tuesday, May 13, 2014 at 8:08pm
science 7th grade
Which of the following does not reduce water pollution? a) cleaning up oil and gasoline spills. b)reducing pollutants such as pesticides and fertilizers. c) increasing the use of gasoline. d) properly treating waste water
Tuesday, May 13, 2014 at 2:45pm
who ever will help me I do not understand this problem? Solve each exponential. Give the exact value of x 6^x = 1/36 3^x = 8 I really do not understand at all I have not taken algebra since 8th grade and went back to school at 67, Thank you if you wish to help me understand ...
Tuesday, May 13, 2014 at 2:25pm
The grade 8 class at Wheatly Middle School sold 77 boxes of almond chocolates. This is 22% of all the boxes of chocolate sold. a) Estimate the total number of boxes sold. b) Calculate how many boxes were sold.
Friday, May 9, 2014 at 4:28pm
7th grade math
Computer catalog has a computer monitor that is 19 inches. The 19 inches is the diagonal distance across the screen. If the screen is 10 inches in height, what is the width of the screen to the nearest inch?
Thursday, May 8, 2014 at 6:44pm
math lit ,geography,history,life science,LO
Am in grade 10 and am doing these subjects and I dnt knw what kind of career choice I can choose please guys help me out please
Thursday, May 8, 2014 at 4:34pm
Fifth grade math
Ellison's Jewlers displays charms for bracelets in trays that hold 36 charms each the store has 637 charms to put on display in 5 display cases. How many charms are left after the trays are filled ?
Thursday, May 1, 2014 at 10:30pm
Math 3rd grade
Lee wants to cut this piece of canvas into two rectangles that are 3 x 2 and 3 x 5. He wants the sum of the areas of the two small rectangles to be the same as the area of the large rectangle. Can he do this? explain.
Monday, April 28, 2014 at 4:11pm
6th grade Lang Arts
Can you explain why the comma used in sentence 1 is not correct as compared to the comma used in sentence 2? (from homework) 1. The stadium, that my favorite team plays in, seats over 81,000 people. 2. My father, who is an excellent reader, finished a 500 page book in one day!
Monday, April 21, 2014 at 10:29pm
math (cant figure it out)
Grade 7 students were surveyed to determine how many hours per day they spent on various activities. Eating is 8%, homework is 8%, sleeping is 33%, TV is 13%, socializing 13%, and school is 25%. About how many hours per day altogether were spent on watching TV and homework?
Friday, April 18, 2014 at 3:52pm
5TH GRADE MATH
Need help trying to tell my daughter what or how to draw this........ DRAW a figure composed of three different rectangles that has a perimeter of 140 yards. Use measurements that are in yards and feet to label the sides of your figure......
Wednesday, April 16, 2014 at 8:57pm
Alright, so I live in Oklahoma, and I just took the OCCT Grade 8 today. My reading score came ou to say Raw Score: 34 and math said Raw Score: 36, there were 50 questions on each test, what was the percentage? Im not sure, so thankies.
Wednesday, April 16, 2014 at 8:43pm
Grade 12 Chemistry
When 50.0 mL of 1.0 mol/L hydrochloric acid is neutralized completely by 75.0 mL of 1.0 mol/L sodium hydroxide in a coffee-cup calorimeter, the temperature of the total solution changes from 20.2 to 25.6. Determine the quantity of energy transferred, q, and state whether the ...
Tuesday, April 15, 2014 at 11:00pm
Algebra help please!
Suppose you are researching the eating habits of people your age. What sampling method could you use to find the percent of students in your grade who eat five servings of fruit and vegetables each day? What is an example of a survey question that does not have bias?
Monday, April 14, 2014 at 5:11pm
6th Grade Math
Aiden has 7/10 cup cereal, 2 2/3 cups pretzels, 1/6 cup raisins and 2/5 cup chocolate chips to make a party mix. How much party mix will he have in all if he uses all the ingredients he has?
Sunday, April 13, 2014 at 3:09pm
physics grade 10 icse
two balls of masses in ratio 1:2 are dropped from the same height find : a. the ratio between their velocities when they strike the ground and b. the ratio of the forces acting on them during motion
Sunday, April 13, 2014 at 12:21am
IT IS END OF THIRD QUARTER AND MY IB ENGLISH GRADE IS A B!!!! MY GOAL WAS TO GET AN A BUT...... ****IF GET AN A ON THE FOURTH QUARTER, WILL MY GPA GO UP!!! I GOT A'S ON ALL OF THE OTHER CLASSES EXCEPT IB ENGLISH......... ***********SO WOULD MY GPA BUMP BACK UP IF I GET AN ...
Friday, April 11, 2014 at 4:46pm
Science - Check my answers please (6th grade)
earth and the moon are kept in their respective orbits due to the influence of ? a) inertia b) gravity c) both inertia and gravity d) neither inertia and gravity Is it c) both inertia and gravity?
Monday, April 7, 2014 at 11:41am
grade 7 students were surveyed to determine how many hours per day they spent on various activities. The results are shown in the circle graph below. about how many hours per day altogether were spent on watching TV and homework?
Thursday, April 3, 2014 at 2:15pm
Math for grade 6 peace
The computer club is having a fundraiser to help pay for a trip to the science museum. So far they have raised $96, which is only 48% of their goal. How much money are they trying to raise?
Friday, March 28, 2014 at 6:25pm
Need 8 grade math help quick please!
I don't understand this. I don't get exactly what I'm supposed to do with the P(parenthes) thingy or how each question differs from the next. Theoretical and Experimental Probability: A number cube with the numbers 1 through 6 is rolled. Find the given probability...
Friday, March 28, 2014 at 3:14am
3rd grade math
suppose she cut the cake into 8 equal size pieces and 6 people at all the pieces. Explain how they could have divided the pieces so that everyone ate the same amount of cake. You can show your work in a drawing.
Thursday, March 27, 2014 at 11:56pm
5th Grade Math
Keith played some games of chess at a tournament. He recorded the results of the games on the table shown. Game Results: Number of Games TIES 4 WINS 12 Losses 4 If Keith plays 10 more games, how many of the 10 games is he likely to win? A. 6 games B. 8 games C. 4 games D. 2 games
Thursday, March 27, 2014 at 7:36pm
6th Grade Math
A drawer contains 3 blue ribbons, 4 red ribbons, and 3 green ribbons. A ribbon is randomly chosen from the drawer, replaced, and another ribbon is chosen. Find each probability"
Wednesday, March 26, 2014 at 7:58pm
Grade 12 Calculus
A rectangular piece of paper with perimeter 100 cm is to be rolled to form a cylindrical tube. Find the dimensions of the paper that will produce a tube with maximum volume. I have made it up to getting an equation for V(w).
Tuesday, March 25, 2014 at 7:49pm
Convert fraction decimal and percent
On Friday math test. will missed 5 problems out of 25. If each problem was equally weighted, what was will's grade on the test? A. 20% b. 75% c. 80% d. 85%
Tuesday, March 25, 2014 at 3:48am
Mr. Gonzalez's sixth-grade class is putting on a play. He reserved the first 6 rows of the auditorium for family members and friends of the 24 students in his class. If each row contains 17 seats and each student can invite the same number of guests, how many guests can ...
Monday, March 24, 2014 at 6:48pm