Friday

March 27, 2015

March 27, 2015

Number of results: 114,886

**Math Please Check!!**

Please check my answer to see if I got it right. Thanks. Braden has 1 hour of math homework to do. He spends 2/5 of this time complaining about how much he hates math, 1/3 of the total time looking for his calculator. How much time does Braden actually work on his math ...
*November 26, 2012 by Justin*

**Math**

Please check my answer to see if I got it right. Braden has 1 hour of math homework to do. He spends 2/5 of this time complaining about how much he hates math, 1/3 of the total time looking for his calculator. How much time does Braden actually work on his math homework? My ...
*November 26, 2012 by Justin*

**english**

Do your homework before applying for any job. if you rewrote the sentence beginning with (Be sure that you) the next words would be? 1)got done your homework 2)got your homework done 3)had done your homework 4)did your homework 5)have done your homework
*May 10, 2010 by Anonymous*

**English**

A: How's your new math teacher? B: He is a nice and funny teacher. A: Really? That's great. B: Yes, I like him. A: Does he give you homework? B: Yes, he gives a lot of homework to us, so I have no time to play. A: That's too bad. (Would you check the dialogue, pleasse? Thank ...
*April 20, 2009 by John*

**Math**

Jance spend from 7pm to 9pm doing her homework. She spend 3 times as mach time on her english project as she did on math. the science homework took twice as long as her math homework. How meny minutes did she spend on her science homework?
*April 24, 2014 by Daniel*

**Ms.Sue**

you comment on every question with a question. if you cant answer them, and just say I'll be glad to check your answer then please don't bother responding to them... this is a homework help place not JUST homework check place.
*February 20, 2011 by Anonymous*

**Math 8R - Homework Check **

1/8 + 1/2 = 7/10 3/4 + 5/6 = 1 7/12 7/9 + 5/6 = 1 11/18 1/4 + 1/2 = 1 2/6 2/3 + 1/2 = 2
*September 27, 2012 by Laruen *

**Math 8 - homework qs. check**

2x - x = 3 - 1 1x = 2/1 x = 2
*October 17, 2012 by Laruen*

**Spanish-Check please! I need help**

Please check-I'm having a problem interpreting these questions and I have to answer them for homework. Could you please check my translation I'm not sure what these questions mean and I have to answer them for homework ¿Qué necesitas para comer en cereal?does this ask what I ...
*March 21, 2012 by Ellen*

**math**

lila did 2 and 3/4 hours of homework on saturday and 3/4 of homework os sunday.what is the time she spent on homework over the weeekend
*February 21, 2013 by Ja'mes*

**English**

1. I do math, science, and English homework every day. 2. I do much / a lot of homework every day. 3. I do much homework every day such as math homework, science homework, English homework, Chinese characters homework, etc. (Are they all grammatical?)
*September 2, 2010 by rfvv*

**Math**

A survey carried out on 40 students about when they did their homework over the weekend F=(homework done on friday) S=(homework done on saturday/Sunday ) n(f)=20,n(s)=29 How many did both days ?
*November 9, 2014 by Amber*

**algebra**

is it ok if one of u experts can check some of my math homework would that be a problem thanks
*January 6, 2009 by Kiwi*

**english/poem**

I am suppose to do a funny sonnet poem that has 10 syllables per line and 14 lines .Can you check my syllable or any mistakes. Oh homework! Oh homework! How I hate you! You smell, you stink, and you I don’t admire I want to tell you “go on” “git” and “shoo!” I want to burn you...
*April 21, 2012 by joseph*

**Where are you Jasmine20, I answered your Homework**

Please check your homework answer At: Name:Tanisha Subject: To:Jasmine20 I posted the answer for GURU DEFINITION. HOPE IT HELPS!!! I think jasmine20 is not on jiskha.
*December 29, 2006 by Tanisha*

**Social Studies**

Rome began as a settlement on the what? With regard to ALL your posts, this is a homework help board and not a homework do board. Someone may help by providing links to information but that probably is available in your text or notes, too. Check your atlas to see what river ...
*April 11, 2007 by Quagabaga Miller*

**Math**

HELLO, THIS IS MY FIRST TIME USEING THE JISKHA WEBSITE. I NEED HELP WITH MY HOMEWORK. PLEASE HELP ME WITH MY HOMEWORK! THANK YOU! _______________________________________ MY MATH HOMEWORK: 30 DIVIDED BY 10 56 DIVIDED BY 6 55 DIVIDED BY 10 30/10=3 55/10=5.5 or 5&1/2 Tell what ...
*December 23, 2006 by Sanjana*

**Math 8R: Homework Check - Part 3 **

Part 3 : Evaluate when x = -2, y = 5 21. 4x + 2y, Answer: 2 22. 3(x) *to the 3rd power*, Answer: -221 23. (x + y) *to the 2nd power*, Answer: 9 24. -4x + 2y, Answer: 18 Please check to see if my answers are correct. Thank You!!! :)
*October 29, 2012 by Laruen*

**Math 8R: Homework Check - Part 2 **

Part 2: Simplify by combining like terms and using the distributive property 11. 3x + 5x Answer: 8x 12. 3x + 5y - 2x + 8, Answer: 1x + 5y + 8 13. 9 + 5m + 6b - 2m - 4, Answer: 3m + 5 + 6b 14. 3ab + 6c - ab + 10 - 2c, Answer: 2ab + 4c + 10 15. 6(m+3), Answer: 6m + 18 16. 8(x-2...
*October 28, 2012 by Laruen*

**english**

Students who do their homework on a regular basis have grades higher than students who don’t do homework. When students do not do their homework they fall behind in the class and eventually receive a zero on that paper, this results in dropping their grade for that class. By ...
*January 25, 2011 by christy*

**Homework (in general)--help!**

I was an A/B student a few years ago, and now there's a problem. I'm a 6th grader whose "homework forgetting level" is increasing. For some reason, I often leave some of my homework home. Can you help me so I will then rarely forget my homework?
*November 7, 2008 by frantic*

**math**

HI im Homework mahde.Im having trouble with my homework. Do you or anyone know what a interval is? In when your like using Graph or of course math terms. Please anwser quickly! Thankyou.
*February 12, 2013 by Homework Mahde*

**statistics**

80% of students passed a class. 90% of those 80% did homework. Of the 20% that didn't pass, 60% of them did the homework. What is the probability of a student having done the homework?
*October 29, 2011 by Danyell*

**math**

hi my name is Hannah and I need help with my math homework it is something to do with multiplying trapezoids and triangles? Also, what are the formula for the shapes so that way i would be able to do my homework? THANKS FOR THE HELP!!!!!!
*March 4, 2013 by hannah*

**math-**

bill spent 7 9/10 hours working on is reading and math homework. if he spent 5 3/6 hours on his reading homework, how much time did he spend on his math homework?
*February 20, 2014 by Chyna*

**ENGLISH**

Identify the correctly punctuated sentence. I marked the one I think it is. • Doing my homework, making my bed, and practicing guitar are on my to-do list for the day. • Doing my homework, is the first thing I should do. • Doing my homework I found my mind start to drift.** • ...
*May 15, 2014 by Sandra*

**math**

sam spent a total of 5 2/3 hours doing homework. Julia spent 5 5/6 hours doing homework. who spent more time on homework this week? explain
*February 22, 2012 by marshalena*

**Math: Homework Check! **

Can you check to see if my answers are correct. If wrong please explain why. 1. 3 ft = 36 L - S x (largest to smallest) THINK: 1 ft = 12 in 2. 72 in = 2 yd THINK: 36 in = 1 yd S - L / (/ means divide) 3. 93 ft. = 31 yd THINK: 3 ft = 1 yd S - L / 4. 500 yd = 1500 ft THINK: 1 yd...
*December 21, 2011 by Lauren *

**precalcus will someone check my homework**

f(3)=-3/8 and (f-2)=-12 MY SOLUTION F(-2)=ab^-2 = -12 F( 3)=ab^ 3 = -3/8 b^5 = 12 * 3/8 = 32 b=2 12 = a(2)^2 12 = 4a a =3 f(x)=3(2)^x
*March 3, 2012 by luckybee*

**Math homework, check+ Help please? :)**

Here is a picture of what I'm doing so that the helpers will explain it better: oi54.tinypic(Dot)com/k6vjd.jpg What I don't understand is How would you set it up and solve this? Could someboy help me? Thank you.
*November 8, 2010 by Allyson*

**math**

sam spent a total of 5 2/3 hours doing homework. Julia spent 5 5/6 hours doing homework. who spent more time on homework this week?
*February 22, 2012 by marshalena*

**Math**

Nick has done 35% of his homework. He had been working for 28 minutes. How long will it take him to finish his homework?
*March 23, 2010 by Hannah*

**math**

It took Melanie 161 minutes to do her homework last night. About how many hours did she spend on her homework?
*February 23, 2011 by Ally*

**MATH HOMEWORK I NEED HELP**

CAN SOME ONE HELP ME ON MY HOMEWORK!!!!!PLZ
*October 23, 2007 by taylor*

**pre algebra homework check**

Solve the equation. x ^2 + 15 = 51 x=±6???
*May 29, 2012 by amy*

**Algebra one, help+ check? :)**

So, this is my math homework. [ I scanned it so it would be easier to explain what I'm doing] h t t p://oi54.tinypic(Dotcom)/2wei16e.jpg And, I don't exactly get how to do problem number 1, and I was wondering if someone could assit me with that. Thank you. -Allyson!
*January 12, 2011 by Allyson*

**Math:Probability**

The probability of having homework over the weekend in math is 0.9,history is 0.6, and Spanish is 0.75. 1. What is the probability of having exactly one class that gives homework? Is this a nCx problem? I got an illogical answer: 10.54=1054% THIS IS NOT RIGHT!!!!!!! 2. What is...
*February 28, 2014 by Anonymous*

**Science 7R - Homework Check (Q3)**

What's the function of a dichotomous key? My Answer: Dichotomous Key use by scientists are arranged in steps with two descriptive statements at each step. Is my answer to this question is correct??? BTW: I got this answer from my textbook in that section that my science ...
*January 26, 2012 by Laruen *

**To:Sabrina**

Do you think you have time to check my french homework. thanks
*January 18, 2009 by Alex B.*

**Math Challenge check**

I can appreciate your honesty. However, I thought this was a blog to help people not to insult them. What may seem obvious to one person may not be to the next. Especially so for young students who come here for help with homework problems.
*November 2, 2011 by To: Steve /Please Help*

**Math**

At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what is...
*November 6, 2009 by Anna*

**Math**

At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what is...
*November 6, 2009 by Anna*

**Math**

At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what is...
*November 6, 2009 by Anna*

**Math 157**

Can someone please help me. At a quality control checkpoint on a manafacturing assembly line, 10% of the items failed check A, 12% failed check B, and 3% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a ...
*December 8, 2010 by Rena *

**math**

Tina completed 2/3 of her homework before dinner. George c ompleted 4/7 of his homework before dinner. Who completed a greater fraction of homework?
*February 21, 2013 by Debbie*

**Math**

Can someone please help me. At a quality control checkpoint on a manafacturing assembly line, 10% of the items failed check A, 12% failed check B, and 3% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a ...
*December 8, 2010 by Rena *

**Accounting**

A check returned by a bank because the issuer's cash account balance could not cover the check is called a(n): a. Cancelled check b. Certified check c. Outstanding check d. NSF check
*October 18, 2012 by Anton*

**Math**

It takes Jaiden 5 and 3/4 hours to do her homework each week. It takes her 2 and 3/4 hours to complete her science and 1 and 1/2 hours to complete her math homework. How long does it take her to complete Social Studies homework? Use the numbers and symbols, listed below, to ...
*January 13, 2015 by Teresa*

**pre algebra homework check**

Find the product and simplify y(4y + 12) =4y^2+12y????
*May 30, 2012 by amy*

**3rd math homework**

number sense write a subtraction fact using 6 such as 6 - ? = ?. then write an addtion fact you could use to check it. please help! thanks
*October 28, 2010 by choconcung*

**Math homework help**

Check out the polar coordinate pairs that label the same point. Several pairs may be possible. A) (2, 2pi/3) B) (2, -pi/3) C) (-3, pi) D) (2, 7pi/3) E) (3,0) F) (-3,0) G) (-2, -pi/3) H) -3, 2pi)
*May 17, 2014 by Don*

**math**

At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what is...
*January 9, 2010 by crystal*

**Math**

At a quality control checkpoint on a manafacturing assembly line, 10% of the items failed check A, 12% failed check B, and 3% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what ...
*December 8, 2010 by Rena *

**Math**

At a quality control checkpoint on a manafacturing assembly line, 10% of the items failed check A, 12% failed check B, and 3% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what ...
*December 8, 2010 by Rena *

**pre algebra homework check**

Find the sum or difference. 4s^2-11s+s^2-6s+21 Is it 5s^2-17s+21?
*May 30, 2012 by amy*

**Math**

I need help with my math homework.I searched for homework help forums and I found the Jiskha Website on the Google Website so this is my first time.I am new. Math Homework: What is the value of number 3 in 2,539? What is the value of number 9 in 4,879 What is the of number 6 ...
*December 26, 2006 by Tanisha*

**English**

1. I have to do scince and math homework tonight. 2. I have to do my science and math homework. ------------ Are both grammatical? Which one is commonly used? Do you have other way of expressing?
*November 29, 2014 by rfvv*

**math**

Ms.Johnson gives twice as much daily homework as Mr. Beach. Mr.Beach gives out 10 minutes less than Mrs.Rodriguez. if Mrs.Rodriguez gives 35 minutes of homework,what is the total amount of homework given by the three teachers? ---- So do you just half it so,Mr.Beach gives 5,...
*November 24, 2014 by Destinee *

**Math 8R - HELP! (homework qs. check)**

Simplifying Algebraic Expression Using the Distributive Property & Combining Like Terms Simplify: -3 (2+3x) + x - 5 -3(2) + -3 (3x) + x - 5 Answer - 6 + -3(3x) + x - 5 Is the answer is correct??? I'm getting a bit confused and struggling a lot in this problem. Please help me!
*October 15, 2012 by Laruen*

**math**

Nina finished 4/8 of her homework before dinner. Ed finished 7/8 of his homework before dinner.Look at the models to compare. Who finished more homework?
*March 13, 2013 by Mrs.Vargas*

**math**

sharon completed her reading homework in 2/3 hour.she completed her science homework in 5/6 hour. how much longer did it take sharon to complete her science homework
*January 22, 2015 by hannah*

**English**

Identify the correct sentence. A. I did my homework when the doorbell was ringing. B. I do my homework when the doorbell is ringing. C. I was doing my homework when the doorbell rang. D. I was doing my homework when the doorbell rung C
*April 15, 2014 by Angela*

**Math**

If a girl had completed 4 pages of homework everyday for 7 days how many pages of homework did she complete in all
*August 6, 2012 by Makenzie*

**math**

what is a quickway to learn how to mutlplying fractions flash cards: make and use them. how do you do Adding and Subtracting Rational Expressions? I want ot know what the numbers or factors of the number 81 are becasues that uis mapt of the homework in my homework 9,1
*March 14, 2007 by lakeisha*

**Math **

Rusell finished 6 out of 10 homework questions. which fraction shows how much of the homework he finished?
*October 14, 2012 by Gilberto *

**To DrBob222(Please check Chem) **

(This homework question has been removed due to a copyright claim submitted by K12 Inc.)
*June 21, 2012 by Liz*

**math**

What type of graph is best suited for displaying the range and frequency distribution of the number of hours the students in a class spend on homework while still showing each individual amount of time spent on homework?
*December 13, 2011 by paige*

**math**

if 1/3 of homework is done before dinner, and 3/5 after dinner. What fraction of homework remains?
*July 19, 2012 by kisha*

**Math**

Capacity Homework? I was doing my grade 8 math homework on capacity, and I was told to order the capacity of Vase A, B, and C from least to greatest. Vase C is a hourglass based prism, and I don't know the formula for it. Please help?
*January 5, 2015 by Anonymous*

**math**

the expiremental probability that ryan will have math homework on a given school day is 80%.on how many of the next30 school days can ryan expect to have math homework?
*April 19, 2011 by hannah*

**Math Models**

What type of graph is best suited for displaying the range and frequency distribution of the number of hours the students in a class spend on homework while still showing each individual amount of time spent on homework?
*November 12, 2010 by Anonymous*

**chem homework help**

can you check my work? Give the conjugate acid for each of the following bases. A. CN- = HCN B. SeO4^2- = HSeO4- C. HCO3- = H2CO
*April 25, 2010 by Anna*

**Cout Iblis Can You Help Me W/The ?'s**

They are title:Math for Trish To Help Me With We are not going to allow anyone to do your homework for you, or tests. That is cheating, pure and simple. Sorry. I don't have time anymore today,. I'll take a look tomorrow. As Bob said, we don't do the homework for you, but we ...
*February 6, 2007 by Margie*

**Polynomials check my answer please **

I need help bad i been doing this homework since i got home at 4:00 and am stuck on this problem. X -1 : X-2 =sum (x+1)+(x-2)=(x+x+1-2) diff (x+1)-(x-2)=(x-x-1-2) Product (x-1)(x-2)=(x^2-1)
*September 19, 2013 by johnnie*

**maths mixed fractions**

jack spends 1 2/3 as longer on his homework as Jill last week, Jill spent 5 1/2 hours doing homework How long did jack spend doing homework? The week before jack spent 24 ½ hours doing homework How long did jill spend doing homework
*January 15, 2012 by Anonymous*

**math**

tina completed 2/3 of her homework george completed 7/8 of his homewor who completed a greater fraction of homework?
*March 20, 2013 by kristiana*

**Please Help Me With My Math Homework**

I wrote my math homework questions. It's in Jiskha Homework Help Forum In: Name:Tanisha Subject:Math Thank You! I already replied, you don't need to make a new question asking someone to answer...... Thanks for the answer! It was a good help! the product of 7_ ,4_ , and 1_ IS...
*December 26, 2006 by Tanisha*

**Science 8R - Homework Check **

Convert the following values: 1. 5 cm = 50 mm 2. 2000 m = 2000. cm 3. 1 m = 1000. mm 4. 15 m = 1500. cm 5. 1 m = 10 cm Are my answers are correct??????
*September 24, 2012 by Laruen *

**English**

1. He is my old friend. (Can we use this one when one of my friends is very old though I met him one week ago?) 2. My favorite class is math class. 3. My favorite class is a math class. (Which one is right? Are both right? ) 4. I do my homework with her after school. 5. I do ...
*April 21, 2010 by rfvv*

**Thanks Tutors**

To all the tutors here, i know i was suppose to ask a question from my homework, and this is a homework website, but i like to thank you for helping me with my homework for the past few months. With you guys help, i got 100% on my math test and spelling!and the other test that...
*June 22, 2012 by Losa*

**English**

I didn't notice the spelling mistake. Could you please check which alternative is best? Thank you. 1) I did't manage to finish my homework before the beginning of the school. 2) On 30 December I was with a group of friends. (I spent New Year's Eve with a group of friends) 3) I...
*January 31, 2012 by Henry2*

**Please check **

Compelete the following table for an ideal gas. P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online homework says its wrong, what am I doing wrong?
*June 27, 2013 by Mary*

**math **

how would I check this on my own? I know you put numbers in the place of the letters but when I do that I come up with my moms answer. this is what i have when I check my work. p=-2 q=3 6*(-2)*3 =-36 but 3(-2)(-2*3)=36 could you tell me what i'm doing wrong when I check them ...
*October 22, 2010 by TiffanyJ*

**Chemistry problem check **

Compelete the following table for an ideal gas. P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online homework says its wrong, what am I doing wrong?
*June 27, 2013 by Mary*

**Math - Measurement Pink Wk Bk (PLZZZ HELP!) **

4. 3 1/2 T = ______ ib 5. 32 oz = ________ ib 7. _____ ib = 7 T Solve: 10. 12 oranges weigh 2 1/4 pounds. How many ounces is this? __________ PLEASE HELP, I really don't get this. Please Help!!!! Thank You!!! :) PS: For homework, we have to do p. 6 in our pink wk bk (every ...
*December 20, 2011 by Lauren *

**Educational Technology**

1. Which of the following choices is a strategy that could help with time management? A. Spending most of the day on leisure activities. B. Doing homework in every spare moment. C. Cutting back on sleep. D. Creating a list of tasks to be completed daily.* 2. What is a planner...
*April 16, 2014 by Chris*

**math**

tiffany spent 1 7/12 hours doing homework. which of the following is the best estimate of how may hours she spent on her homework.
*January 23, 2012 by michee*

**Spanish Check**

Hi! Can someone check my answers to these three Spanish sentences? Thanks! Directions: Re-write the Spanish sentences in the present subjunctive. 1.) I feel that she is honest. My answer: Siento que ella es honesta. 2.) We doubt that the boys clean the room. My answer: Dudamos...
*March 5, 2015 by Gigi*

**statistics**

For this class, the first quiz had a mean of 90.4% with a standard deviation od 16.6%. The homework scores have a mean of 81.7% with a standard deviation of 22.28%. Suppose you scored 90% on quiz one and have a homework total of 84%. A)are the reported means and standard ...
*February 17, 2008 by lauren*

**Everything**

WHY IS THERE SO MUCH HOMEWORK? Id rather have another hour of school than an hout of homework!
*April 19, 2011 by 6th grd Sarah*

**English**

A: Seho, what are you doing? B: Hi, Inho. I'm doing my math homework. A: Hurry up! We have to play soccer in the playground. B: We have a soccer match on Thursday. Today is Wednesday. A: No, it's Thursday today. Come here quickly. B: Sorry. I'll be there. Wait for me. (Would ...
*September 3, 2012 by rfvv*

**Can someone please check my answer for chemistry **

Compelete the following table for an ideal gas. P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online homework says its wrong, what am I doing wrong?
*June 27, 2013 by Mary*

**Math**

What is a unit rate? what is the prime factorazation for 945? idk how to do this 10= 15= GCF= i need help with my prime factorization homework what is a prime factorazation i meed held on my homework how do u determine if the numbers are prime or composite
*December 12, 2006 by Lindsey*

**English**

Did you do your homework? Yes, I did. It is very easy. 1)It cannot be. It is difficult even for me. (What does 1) it refer to? Do it's in the passage all mean homework?)
*October 7, 2010 by rfvv*

**homework help**

do you know any other homework help sites that offer instant or live help?
*January 10, 2015 by Ben*

**Algebra**

Hello, can someone help me solve and check the following 1) x - 8 = 20 Check: 2) x + 15 = 35 Check: 3) -x +6 = 3 Check: The symbol 'x' is in italic. If I can understand the symbols better, I belive I can get the hang of the course.
*January 8, 2010 by Tamir*

**Math**

Dave finished 2/5 of his science homework before he went to soccer practice.After practice, he finished another 2/5 of it. What fraction of his homework does Dave have left to do?
*December 12, 2012 by Anonymous*

**Algebra**

Hello, can someone tell me if I got the following solve and check work correct? 1. solve and check 1/2x = 3 5/6 1/2x = 3 5/6 1/2x = 23/6 3x = 23/3 x = 23/3 And to check for it 1/2x = 3 5/6 1/2x = 23/6 46x = 6 x = 6/46 x = 3/23 2. Solve and check 3x + 2 / 2 = 7 3x + 2 / 2 = 7 ...
*April 13, 2010 by Tamir*

**Chemistry answer check **

What quantity of heat is required to produce 5 mol of oxygen gas by this reaction? HgO(s) → Hg(l) + ½ O2(g), ΔH = +90.7kJ I calculated 90.7*5, but my online homework says its wrong how do I calcuate this?
*June 25, 2013 by Mary*

**Algebra Homework**

On my homework it says to write 324 in scientific notation. For my answer I got 3.24 x 10^2 Would this be correct?
*December 28, 2012 by Karen*

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