# Posts by Sarah

Total # Posts: 5,778

**chem**

Agreed. In high school I was taught something else. Like multiply every thing by 2. To get a whole number. Thank you for your help

**chem**

How many grams of CO2 are produced when 11.47 moles hexane combust? My work:I balanced the equation like so C6H14 + 19/2 O2 ==> 6CO2 + 7H2O My teacher taught us the 19/2 was valid My work: 11.47 mol C6H14 * 6 CO2/1 mol C6H14 * 44g/mol/1 mol CO2 = 3, 028 g of CO2

**chemsistry**

My work: 454 g C6H14 * 1 mol C6H14/86.18 g C6H14 * 6 mol CO2/ 1 mol C6H14 * 44 g C02/ 1 mol CO2= 1390.7 g/ CO2 185 g O2 * 1 mol O2/ 32 g O2 * 6 mol CO2/(19/2) mol O2 * 44 .0g CO2/ 1 mol CO2= 160.65 g/CO2 Limiting factor is O2

**chemsistry**

If one pound (454g) of hexane combusts with 185 grams of oxygen which reactant is the limiting reactant and how many grams of carbon dioxide are produced? how do I do this? How do I set it up?

**chemistry**

My work: 454 g C6H14 * 1 Mol C6H14/86 g C6H14 * 7H20/1 mol C6H14 * 18 g O2/ 1 MOL H2O = 665.2 grams of H2O

**chemistry**

If one pound (454g) of hexane combusts how many grams of water are produced? How do u set this up? Start it?

**chemistry**

I balanced the equation like so C6H14 + 19/2 O2 ==> 6CO2 + 7H2O My teacher taught us the 19/2 was valid My work: 11.47 mol C6H14 * 6 CO2/1 mol C6H14 * 44g/mol/1 mol CO2 = 3, 028 g of CO2

**chemistry**

How many grams of CO2 are produced when 11.47 moles hexane combust? Show work please

**Chemistry**

Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 4.00-g sample is burned, and 2.70 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?

**Civics**

That's OK I'll chose A and see what happens.

**Civics**

2. One main difference between the United States Constitution and state constitutions is that state constitutions A. are much longer. B. don't provide for a legislature. C. can't be amended. D. don't have bills of rights. So ...

**Civics**

2. One main difference between the United States Constitution and state constitutions is that state constitutions A. are much longer. B. don't provide for a legislature. C. can't be amended. D. don't have bills of rights. ? Can...

**Civics**

1. Suppose Bill HR612 is currently in Congress. One thing you know about this bill is that it A. originated in the House of Representatives. B. has been vetoed by the president. C. has no riders attached. D. is currently in committee. A?

**Civics correction**

The answer is C I just answered and got it write.

**Civics correction**

3.Which one of the following statements is accurate for the Articles of Confederation. A. There was only one central court. B. Each state could veto a presidential decision. C. There was no president. D. Interstate commerce could be ...

**physics**

Part 2: Complete the following math problems by using the Law of Momentum Conservation. Formulas: i. Momentum = (mass) * (velocity) ii. Impulse = (Applied force) * (time) and Impulse = Change in Momentum iii. Applied Force = (Change in Momentum) / (time) iv. For multiple ...

**Civics**

What?

**Civics**

20. The governmental body responsible for interpreting the Constitution is the A. Supreme Court. B. president. C. House of Representatives. D. Senate. A?

**Civics**

19. Suppose a bill has passed both the House and the Senate. It goes to the president at the beginning of the annual session of Congress. The president doesn't sign the bill but holds it for more than 10 days. What happens to the bill? A. It becomes ...

**Civics**

13. The New Jersey plan called for A. a strong president. B. abandoning the Articles of Confederation. C. equal representation for all states in the Congress. D. the abolition of slavery. C? Could not find this question in my book or on ...

**Civics**

12. In 1900, how were members of the United States Senate chosen? A. They were elected by the people. B. They were appointed by their state legislatures. C. They were appointed by the governor of their state. D. They were elected by the ...

**History**

1) Why did the five powers directing the “Concert of Europe” from 1815-1823 believe they had a common interest in suppressing revolutionary activity across Europe? (Choose one) a. While differing in their constitutional make-up, all five agreed that radical ...

**Civics**

Supporters of the New Jersey Plan A. called for a legislature in which each state had one vote. B. rejected the idea of three branches of government. C. required that Senators be selected by a House of Representatives. D. ...

**Civics**

11. The purpose of the Constitution is presented in the A. Articles. B. Preamble. C. Bill of Rights. D. Amendments. B?

**Civics**

I know the New Jersey Plan question is not D.

**Civics**

10. John Quincy has been a citizen of the United States for 8 years. He is 27 years old. If John decides to run for Congress, what are his options? A. He can run for the Senate, but not the House. B. He can run for the House, but not the Senate. C.&...

**Civics**

Supporters of the New Jersey Plan A. called for a legislature in which each state had one vote. B. rejected the idea of three branches of government. C. required that Senators be selected by a House of Representatives. D. supported a ...

**Civics**

7. The original purpose of the Constitutional Convention of 1787 was to A. develop the principle of states' rights. B. solve the slavery issue. C. revise the Articles of Confederation. D. elect the first president of the United States...

**Civics**

4. An agreement to count slaves as three-fifths of a person was related to A. the denial of African Americans the right to vote. B. the number of Senators each state would have. C. the way in which population would be counted in each state. D.&...

**Civics to Ms.Sue**

My answer is B.

**Civics to Ms.Sue**

Ms.Sue said C wasn't correct.

**Civics to Ms.Sue**

Sorry I meant to say B and D.

**Civics to Ms.Sue**

3. Which one of the following statements is accurate for the Articles of Confederation? A. There was only one central court. B. Each state could veto a presidential decision. C. There was no president. D. Interstate commerce ...

**Civics**

3. Which one of the following statements is accurate for the Articles of Confederation? A. There was only one central court. B. Each state could veto a presidential decision. C. There was no president. D. Interstate commerce ...

**Civics**

2. The Eighteenth Amendment, "Prohibition," was reversed by the _______ Amendment. A. Twentieth B. Twenty-first C. Nineteenth D. Twenty-second B?

**Civics**

I said it was B,but Reed said read Ms.Sues link and I did.

**Civics**

I read it and it says two houses.

**Civics**

B?

**Civics**

1. A bicameral legislature features A. one hundred equal representatives. B. two legislative bodies. C. four equal legislative bodies. D. one legislative body ?

**social studies**

Would it be d?

**social studies**

In a famous speech, William Jennings Bryan A. declared his staunch support of the gold standard. B. refused his nomination as the presidential candidate of the Populist Party. C. refused to be allied with the so-called "silverists." D. declared that mankind shouldn&#...

**geo**

A square has an area of 25. A rectangle has the same width as the square. The length of the rectangle is double its width. What is the area of the rectangle?

**Physics**

A diver leaves a 3-m board on a trajectory that takes her 2.8m above the board and then into the water 2.7m horizontally from the end of the board.At what speed and angle did she leave the board?

**Physics**

You can run 8.8m/s,20% faster than your brother. How much head start should you give him in order to have a tie race over 110m?please help:(

**math**

Let f(x)= 2x+1 and g(x) = 3x^2-4 find: a) f^-1 b) gof (-2) c) fog (x)

**Spanish II**

Write a paragraph using the preterite & the imperfect and tell about: ¿Cuál era tu pasatiempo favorito cuando tenias 12 años? 5-6 frases completas Here is the paragraph I wrote: Mi pasatiempo favorita cuando tenía 12 años era leer libros. Me ...

**Spanish**

Write a paragraph using the preterite & the imperfect and tell about: ¿Qué hacías o jugabas cuando eras niño (5 o 6 años) (a)? 5-6 frases completas Here is the paragraph I wrote: Cuando tenía 5 o 6 años que jugué muchos ...

**Criminal Justice**

. The largest category of convictions for felonies is: A) drug offenses. B) violent crimes. C) sexual crimes. D) property crimes.

**Maths**

Should be how many batches can she make out of 10 cups of mixture

**Maths**

I must come up with an maths model to solve this... Sally is baking some biscuits for a party. It takes 5/6 of a cup of mixture to make one batch. How many batches can she make out of cups of mixtures?

**English**

Is this correct Ms. Sue? 2. The day (after tomorrow) (is a holiday). 3. There are three new students (in the class) tonight. 4. Most of the applicants (for office jobs) type thirty words per minute. 5. Fewer people (have been attending) (the school games) this year. 6. (Will ...

**English**

I was just given this sheet in class and my teacher didn't help me at all.. She seems more concerned with her phone than teaching the class.. can someone help me do a few of these so I can understand? all prepositional phrases in parentheses. Underline the subject or ...

**LA**

What is the theme, tone, characters and authors intentions for the poem named Your Little Voice by E.E. Cummings

**English**

What does the “General Prologue” (in the canterbury tales) reveal about the values of society? How does the text reflect cultural attitudes? Look for patterns and repetitions. Do certain words, phrases, images or situations recur? Identify what effect those ...

**physics**

calculate the average angular acceleration and initial angular velocity of a wheel that has w=1.5wo(initial omega) at the end of 1min and w=45rev/sec at the end of 3min

**physics**

How do you set them equal to d. I am having a lot of trouble doing this.

**Physics**

How fast (in rpm) must a centrifuge rotate if a particle 8.55 cm from the axis of rotation is to experience an acceleration of 1000 g's? (use 9.8 m/s^2) You may assume constant angular velocity.

**Physics**

A 5.6 kg ball (I=2/3mr^2) starts on a hill 11.3 m above level surface of the ground. The ball then rolls (without slipping) down the hill. What is the linear speed of the ball when it reaches the bottom of the hill?

**Physics**

An ice skater with an initial moment of inertia of 1.44 kg*m^2 is spinning at a rate of 3 revolutions per second. As she extends her arm outward her moment of inertia increases to 2.52 kg*m^2. What is her new angular velocity (in rad/s)?

**LA**

Why did Robert Frost write the Road Not Taken? Why did Walt Whitman write O Captain! My Captain!?

**physics**

how can we derive the work-energy theorem form Newton's second law of motion?

**science help**

acceleration

**calculus check**

If siny=cosx, then find dy/dx at the point (pi/2, pi) A. -1 B. 0 C. 1 D. pi/2 E. None of these I got C

**Calculus check**

Let f(x) be a polynomial function such that f(3)=3, f'(3)=0 and f"(3)=-3. What is the point (3,3) on the graph y=f(x)? A. Relative maximum B. Relative minimum C. Intercept D. Inflection point E. None of these I got C

**Calculus check**

Given f(x)=x^4(2x^2-15). On what interval(s) is the graph of f concave upwards? A. (0, sqrt(3)) B. (-sqrt(3), 0) C. (-sqrt(3), 0) and (0, sqrt(3)) D. (-sqrt(3), sqrt(3)) E. (Negative infinity, -sqrt(3)) and (sqrt(3), infinity) I got E

**Calculus check**

An equation of the line tangent to y=sinx+2cosx at (pi/2, 1) is A. 2x-y=pi-1 B. 2x+y=pi+1 C. 2x-2y=2-pi D. 4x+2y=2-pi I got A

**Calculus check**

The smallest slope of f(x)=6x^2-x^3 for 0 is less than or equal to x is less than or equal to 6 occurs at x= A. 0 B. 2 C. 3 D. 4 E. 6 I got E

**Calculus check**

The limit as x approaches 1 (x^3-1)/(x^2-1) is I got 3/2

**Calculus check**

Find the equation of the line tangent to y=tan2x at x=pi/8 A. y-1=sqrt(2)(x-pi/8) B. y-1=1/2(x-pi/8) C. y-1=1/4(x-pi/8) D. y-1=2(x-pi/8) E. y-1=4(x-pi/8) I got A

**Calculus check**

Given f(x)=4+3/x find all values of c in the interval (1,3) that satisfy the mean value theorem. A. 2 B. Sqrt(2) C. Sqrt(3) D. +or- sqrt(3) E. MVT doesn't apply I got C

**Calculus**

if f'(x)=2(3x+5)^4 , then the fifth derivative of f(x) at x=-5/3 is A. 0 B. 144 C. 1,296 D. 3,888 E. 7,776 I got A

**Calculus check**

If f(5)=3 and f'(5)=-2, find the derivative of x^2f(x) at x=5. A. 0 B. -18 C. -12 D. -20 E. -80 I got D

**Calculus**

The normal (perpendicular) line to the curve y=sqrt(8-x^2) at (-2,2) has slope A. -2 B. 1/2 C. -1/2 D. 1 E. -1 I got A

**Calculus check**

The integral of (x^2-4secxtanx) dx= I got x^3/3-4secx+c

**Calculus check revised.**

y=-1/sqrt(x^2+1) , then dy/dx= A. x/(x^2+1)^1/2 B. x/(x^2+1)^3/2 C. -x/(x^2+1)^1/2 D. -x/(x^2+1)^3/2 E. x/(x^2+1) I got B.

**Calculus check**

Please disregard this question. Sorry and thank you.

**Calculus check**

y=-1/sqrt(x^2+1) , then dy/dx= A. x/(x^2+1)^1/2 B. x/(x^2+1)^1/2 C. -x/(x^2+1)^1/2 D. -x/(x^2+1)^3/2 E. x/(x^2+1) I got B.

**Calculus check**

If f(x)=sin^2(3-x) then f'(0)= A. -2cos3 B. -2sin3cos3 C. 6cos3 D. 2sin3cos3 E. 6sin3cos3 I got B

**Civics**

I should of known that answer a little bit earlier! But whatever.

**Civics**

The answer is D. I chose C and got it wrong.

**Civics**

12. Which one of the following statements is most accurate regarding the Mayflower Compact? A. It made Plymouth a royal colony. B. It created the Massachusetts Bay Colony. C. It founded the Plymouth colony under a proprietary governor...

**MATHS**

Please help - In a stationery shop, there were pens, erasers and rulers. There were thrice as many pens as erasers and thrice as many erasers as rulers at first.After the shop keeper sold 6 rulers and some erasers there were thrice as many pens as erasers but 4 times as many ...

**maths**

Need help on this, Please : there was a total of 1134 durians, papayas and apples in a basket. when 25% of the durians and 96 papayas were taken out and 252 more apples were put in basket, there were an equal number of the three types of fruits, How many of each type of fruit ...

**To Ms.Sue**

I MEANT FOR TOMORROW'S EXAM GEEZ, A STUDY GUIDE!😧

**To Ms.Sue**

Ms.Sue please check civics for me,it's the last of today!

**Civics**

This is a study guide for me not the final exam. I am just so used to saying exam and not study guide or whatever,jeeeeeeez.

**Civics**

How can I trust you and go with what you say this is an exam and I need someone to correct me and help me out. I like that Ms.Sue always helps me and corrects me wonder where she is? But thanks for the help it's appreciated :)

**Civics**

What about 17 and 20?

**Civics**

20. In 1775, the population of the colonies included about _______ African slaves. A. 100,000,000 B. 100,000 C. 500,000 D. 50,000 C?

**Civics**

19. In general terms, the heart of any representative democracy is A. the Senate. B. Congress. C. suffrage. D. a legislature. D?

**Civics**

18. The largest social class in Egypt or ancient Rome was made up of A. soldiers. B. farmers. C. artisans. D. traders. B?

**Civics**

17. After General Howe's forces defeated the Americans at Brooklyn Heights and White Plains, Washington's strategy called for A. drawing British forces inland. B. retreating to the south. C. surrounding the British and forcing them into...

**Civics**

16. Which one of these terms is most closely related to an oligarchy? A. Constitutional monarchy B. Junta C. Democracy D. Roi Soleil B?

**math**

i like math

**Civics**

Thanks:) 15. Suppose you work for a government agency that regulates the buying and selling in the country. Which main purpose of government is your agency serving? A. Organizing work for common goals B. Settling disputes C. Distribution of resources...

**Civics**

14. What did Plato critique in his book The Republic? A. Democracy B. Isolationism C. Socialism D. Communism ??? Am not 100% sure with this question.

**Civics**

13. Under the reign of Louis XIV, the government in France was a/an A. absolute monarchy. B. representative democracy. C. dictatorship. D. direct democracy. A?

**Civics**

"The compact remained in effect until Plymouth was incorporated into the short-lived Dominion of New England in 1686 and subsequently absorbed into the Massachusetts Bay Colony in 1691." I read the page and found this,which made me think B.

**Civics**

Which one of the following statements is most accurate regarding the Mayflower Compact? A. It made Plymouth a royal colony. B. It created the Massachusetts Bay Colony. C. It founded the Plymouth colony under a proprietary governor. D. It ...

**physics**

12km