Wednesday

September 28, 2016
Total # Posts: 100,163

**Chemistry**

a. Write and balance the equation for the reaction of calcium carbonate with hydrochloric acid, then answer the following questions. b. What mass of calcium carbonate is required to neutralize 83.5mL of 6.00M HCl? does the balanced equation have any significance in this ...

*September 18, 2016*

**Physics **

The Earth is about 81 times more massive than the moon. During the gravitational interation of the Earth and the Moon, the magnitude of the gravitational force acting on the Earth _______ the gravitational force acting on the Moon. A) is greater than B) is less than C) is the ...

*September 18, 2016*

**PHYSICS **

Two objects are tied together and placed on a frictionless table. One is pushed off the edge of the table so it falls, dragging the second along the surface of the table. The magnitude of the acceleration of the falling object is _______.

*September 18, 2016*

**Chemistry**

i meant x 1 mol cl so 1.25 mol cl/.862

*September 18, 2016*

**Chemistry**

Calculate the concentration of chloride ions in the following solution. 73.28g of sodium chloride in 862. mL of solution. would it be 73.28g x 2 / 58.44g NaCl = 2.50 mol of Cl 2.50 mol Cl / .862 L = 2.91 M Cl

*September 18, 2016*

**Chemistry**

Is the answer 100?

*September 18, 2016*

**Chemistry**

1.0 x 10^5 mL=m^3

*September 18, 2016*

**Pre-Algebra**

A chess club with 40 members is electing a new president. Lisa received 16 votes. What percentage of the club members voted for Lisa?

*September 18, 2016*

**English**

when taking an online test, be sure to do all of the following EXCEPT:

*September 18, 2016*

**Math **

A 14 inch board is to be cut into 3 pieces so that the second piece is twice as long as the first piece and the third piece is 4 times as long as the first piece. If x represents the length of the first piece find the lengths of all three pieces

*September 18, 2016*

**Math**

Jason has 20 coins that are only dimes and quarters. The total value is $2.75. How many of these are quarters? I tried answering it but I got 5 quarters. I'm not so sure if that's the right answer. Can you show me the equation and the right answer to see if I'm ...

*September 18, 2016*

**Math**

How do I show that the sum of 2 consecutive integers is always odd? I'm stuck on this question. Can you explain and show how to solve this? Thank you! :)

*September 18, 2016*

**Math**

The sum of 5 consecutive even integers is 50. What is the middle one? Can you show the equation and how you solved it please?

*September 18, 2016*

**Math**

How do I show that the sum of 3 consecutive odd integers is a multiple of 3? Can you please help me answer this question? My teacher didn't explain on how to solve it very well.

*September 18, 2016*

**Math**

Show that the sum of 3 consecutive odd integers is a multiple of 3? I'm not so sure on how to answer this question, can you please help and show me on how to find it?

*September 18, 2016*

**Physical Science**

While rearranging a dorm room, a student does 310 J of work in moving a desk 1.5 m. What was the magnitude of the applied horizontal force?

*September 18, 2016*

**Math**

270 tickets were sold at a school event. The total money collected is $1700, if the adults cost $10 and the student section cost $5. How many adult tickets were sold? My teacher gave this to us but he didn't explain it how. Can you help me answer this question and show the...

*September 18, 2016*

**Math **

Last month a store sold 4 times as many tapes as CDs. If the total quantity of these two items sold was 360, how many tapes did the store sell?

*September 18, 2016*

**Maths**

Boy lost 0.3 of his marbles . He has 77 left . How many did he start with?

*September 18, 2016*

**math**

The ratio of two angles is 3:1 find the larger angle if the smaller is 180

*September 18, 2016*

**PHYSICS**

What is the change in momentum of a car weighing 1500 kg when its speed increases from 36 km/h to 72 km/h uniformly?

*September 18, 2016*

**Chemistry**

What do I do to convert the mols of C6H12O6 to mols CO2 , I can't understand how I will use the coefficients???

*September 18, 2016*

**Chemistry**

How many grams of CO2 is produced from 855 grams of C6H12O6 in the process of cell respiration?

*September 18, 2016*

**Algebra**

A phone company charges a monthly rate of 10 dollars for the first 50 text messages and charges $0.05 for every text message after the first 50 messages Write an equation in two variables that represent the monthly cost of text message services y=0.5x+10

*September 17, 2016*

**Maths **

If (x+3) varies directly as you and x= 3 when y= 12 Find the ; i)relationship between x and y ii) value of x when you = 8

*September 17, 2016*

**Algebra**

Mandy has to pay for her gas when she goes out with friends. She receives an allowance of $25 per week. Mandy fills her 16 gallon car up twice a month with gas currently costing $2.11 per gallon. After filling her car up twice a month, how much does Mandy have left over to ...

*September 17, 2016*

**History**

Was it caesar augustus or octavian

*September 17, 2016*

**History**

Who became the ruler of Rome after Julius Caesar died?

*September 17, 2016*

**college math**

The difference between sixsix times a number and sevenseven more than threethree times the number.

*September 17, 2016*

**Chemistry**

Convert a density of 13.6g/ml to lb/ft^3

*September 17, 2016*

**Chemistry**

2.36 x 10^4 s= ? days

*September 17, 2016*

**Math**

Make the smallest number possible , you may include a decimal point 1,7,0,3,8

*September 17, 2016*

**Science **

A saturated solution of kcl is prepared at 25degree celsius. What would happen if temperature is cooled to 10degree celcius? ????????

*September 17, 2016*

**Maths**

students receive 17 sweets each and the left over is 9/23

*September 17, 2016*

**Maths **

A teacher has 16 boxes of sweets. Each box contains 25 sweets. The teacher shares as many sweets as possible equally among 23 pupils i) How many sweets does each pupil recieve? ii) How many sweets are left over ?

*September 17, 2016*

**physiology**

list from smallest to largest to smallest; atom, bacteria, sugar molecule, or ribosome

*September 16, 2016*

**math**

7. Below, the standard addition algorithm is being used to add three two-digit numbers. 4z 27 +x5 y14 If x, y and z each represent a different digit from 0 to 9, what is the value of (x)(y)(z)?

*September 16, 2016*

**english**

I would say C because according to the story, the other women took off their chadri and refused to leave, then afterwards they bring Narguess back and confront her for taking off her chadri.

*September 16, 2016*

**maths**

what is log (243*24*75*2/120*54*27*5)= log (1)= 0

*September 16, 2016*

**Math**

Which physics equations should I use?

*September 15, 2016*

**Math **

A express train travels along a straight line between two stations, A and D. Stations B and C are spaced evenly along the line between A and D. The engineer leaves A and accelerates at a constant rate until he passes station B, at which time he coasts with constant velocity. ...

*September 15, 2016*

**Calculus**

Never mind, I got it.

*September 15, 2016*

**Calculus**

How did you simplify 1/(x^2 + a^2) as 1/(2a^2)?

*September 15, 2016*

**Calculus**

If a ≠ 0, then the limit of (x^2 - a^2)/(x^4 - a^4) as x approaches a is: How do I do this type of problem?

*September 15, 2016*

**operations mangement**

Johnson chemicals is considering two options for its supplier portfolio option one uses to local supplier such a unique event risk of 5% the probability of a super event that would disable both at the same time is estimated to be 1.5% option to use it to suppliers located in ...

*September 15, 2016*

**Math**

What amount of a 60% acid solution must be mixed with a 30% solution to produce 300 mL of a 45% solution?

*September 15, 2016*

**Biology**

three similar celery stalks are placed in solution of dye for 5 mins to examine diffusion in living cells. what are some possible sources of error? suggest improvements to the experimental design?

*September 15, 2016*

**grammar**

It may be 60 feet long it may weigh 30,000 pounds

*September 15, 2016*

**Maths**

24 cats line up for breakfast. the first cat eats one fish, the second cat eats two fish, and so on, with each cat eating one more fish than the one before it. How many fish are eaten in total?

*September 15, 2016*

**Physics Electricity and magnetism **

Two 10-cm-diameter charged rings face each other, 15.0 cm apart. Both rings are charged to + 30.0 nC . What is the electric field strength at the center of the left ring?

*September 15, 2016*

**Science **

What does lmao mean?

*September 15, 2016*

**Math**

A express train travels along a straight line between two stations, A and D. Stations B and C are spaced evenly along the line between A and D. The engineer leaves A and accelerates at a constant rate until he passes station B, at which time he coasts with constant velocity. ...

*September 15, 2016*

**Math**

A rocket moves upward from rest with an acceleration of 29.4 m/s2 for 4 seconds. It then runs out of fuel and continues to move upward. Neglecting any air resistance, how high will it rise?

*September 15, 2016*

**Math**

Thank you. I get it now

*September 15, 2016*

**Math**

I don't get it. Explain more please

*September 15, 2016*

**Math **

The velocity vs time graph of an object is approximated by a triangle which starts at v=0 at t=0, rises to a maximum of v=6 m/s at t=6 sec, then returns to zero at t=10 sec. How far did the object travel?

*September 15, 2016*

**History**

Are they correct now? 20-b 23-c 25-b

*September 15, 2016*

**History**

Please check my answers. Thank you! The colonies of New York, Pennsylvania, New Jersey, and Delaware were all part of which colonial region? Eastern Middle* New England Southern Question 2 (Multiple Choice Worth 4 points) (01.06 LC) Who would have written a secondary source ...

*September 15, 2016*

**Math**

For number one is it C?

*September 15, 2016*

**vidya varthaka**

If 1+cos² thetha =5/4. Find thetha

*September 15, 2016*

**Social Studies**

1.) D 2.) B 3.) C TRUST ME!!!!

*September 15, 2016*

**Social Studies**

its C trust me

*September 15, 2016*

**Algebra**

The opposite of -4 is: A: 4. B: -4. C: -(-(-4)). D -|4|. I chose D. Am I correct?

*September 15, 2016*

**Social Studies**

Is it B?

*September 15, 2016*

**Algebra**

A triangle has vertices at A(3,4),B(-3,2),C(-1,-4). Is the triangle a right triangle? Explain.

*September 15, 2016*

**maths need help**

x^x=14 find x

*September 15, 2016*

**algebra**

Eli took the fleet of 8 vans for oil changes. All of the vans needed windshield wipers which cost $24 per van. The total bill was $432. Write an equation to find out what each oil change cost. solve the equation.

*September 14, 2016*

**pascal programming**

read the cost of a meal at a restaurant. if a 10% service charge were added to the bill, write an algorithm to calculate and return the total amount on the bill

*September 14, 2016*

**Math**

Sample of outside of the box

*September 14, 2016*

**World History**

thanks. so just to clarify for the headline, while I write the situation of Caesar's death I also have to put my opinion about it?

*September 14, 2016*

**World History**

If I choose to do the death of Caesar as the headline what would be an international story?

*September 14, 2016*

**World History**

What would the international be? Would I have to connect the headline article to the international or can they both be totally different things

*September 14, 2016*

**World History**

I emailed as well I am just waiting for a response. So for the headline, it says I have to write an opinion article. So does that mean I choose an event and explain what happened and explain what I feel about the situation?

*September 14, 2016*

**World History**

I have to do a newspaper project where I create my own newspaper by choosing one of the civilizations I have. (I chose Rome) It then asks me to "Create a headline story : This article should be researched. You can choose to write an opinion article of a particular ...

*September 14, 2016*

**math**

Family passes to an amusement park cost $54 each. Which expression can be used to find the cost in dollars of 8 family passes?

*September 14, 2016*

**Social studies please check my answers!!!**

Yes I did, but what were the write answers? And my real name is Mandy Andrews

*September 14, 2016*

**Social studies please check my answers!!!**

No it's not I got it wrong

*September 14, 2016*

**Math**

Draw a diagram to find each quotient of 3÷1/3

*September 14, 2016*

**maths**

toms height is 90cm and amy is 40cm taller.how many cm less than 1 1/2m is amys height

*September 14, 2016*

**Algebra**

Find the value of y for a given value of x, if y varies directly with x. If y= -252 when x=84, what is y when x= 74?

*September 14, 2016*

**math**

7 3/4% = ? fraction in simplest form

*September 14, 2016*

**Math**

hi i need help for a math question. The question is about geometric sequence, it asking about " in 2004, the turbines generated 326 MW of wind energy, and it is projected that the amount will be 10,000 MW per year by 2010. If this growth were modeled by geometric sequence...

*September 13, 2016*

**Math pre algebra please help **

Solve the equation 1/2x -5 +2/3x=7/6+4

*September 13, 2016*

**Science-Physics **

Why is it easier to float in the Dead sea than the Caribbean sea?

*September 13, 2016*

**Math**

132:89

*September 13, 2016*

**Physics**

An astronaut exerts a 190-N force pushing a beam into place on the International Space Station. The beam accelerates at 0.14 m/s2 .Determine the mass

*September 13, 2016*

**CHECK my answer in American government**

Then its A

*September 13, 2016*

**CHECK my answer in American government**

** by my answer 4. In which way does a dictatorship differ from a democracy? (1 point) In a dictatorship, the power is held by one person and political party. Leaders in a dictatorship are always democratically elected. Dictatorships have short-term limits on their rule.****

*September 13, 2016*

**geometry**

Find the area of a regular hexagon with the given measurement. 4-inch side A = sq. in.

*September 13, 2016*

**Chemistry**

F

*September 13, 2016*

**math**

well, what is 20% of 5000? just subtract that.

*September 13, 2016*

**BOGUS**

why do you do this $%@#$%#$% ??? Post the same problem under two different subjects, one minute apart!! Stop wasting everyone's time.

*September 13, 2016*

**chem**

If I'm getting an answer around 4.8 can I round that off to 5 for the final state or it remains as 4?

*September 13, 2016*

**Algebra**

A football game lost 6 yards on their first play in Gained 10 yards on the next play how many yards were gained

*September 12, 2016*

**Social studies**

longhouse

*September 12, 2016*

**Math **

Find the sum of all the even numbers between 75 and 85

*September 12, 2016*

**Algebra **

A light year, the distance light travels in 1 year,is approximately 5.9x10^12 Alpha centauri A,b 4.3 How far in miles is Alpha Centauri A,B. Scientific notation! I thought the answer was 25.37 x10^12

*September 12, 2016*

**Math**

Pencils cost $0.49 each. You estimate the cost as $0.50 each. How many pencils do you need to buy for your estimate to differ from the actual cost by $2.00?

*September 12, 2016*

**Chemistry**

Yes

*September 12, 2016*