Saturday

April 25, 2015

April 25, 2015

Total # Posts: 33

**Chemistry **

When 20.1 g Sb2S3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the percent yield of this reaction? My work so far... converted 20.1g of Sb2S3 to moles 20.1/149.8=.134 .134Sb2S3*2moles Sb/1 mole Sb2S3=.268*121.7=32.6 of Sb <---Thoretical yeild. 9.84/38.6= ....
*February 8, 2015*

**Science URGENT help please**

700 W
*April 16, 2014*

**Science check answer quick!**

I really do not understand Number 7 Which of these does Newton's law of universal gravitation imply? (Points : 1) The force of gravity between two objects is inversely proportional to the product of the two masses. <-- Earth's gravity acts on people inside a space ...
*January 7, 2014*

**Social Studies**

Defiant! Most definitely
*December 23, 2013*

**Check Answers Quick -Physics**

Number 1 is electrical attraction. Number 2 and 3 are correct.
*December 16, 2013*

**Check my answers 6 ?s- Physics**

What is a free body diagram? (Points : 1) a drawing of an object in free fall a diagram showing all the forces acting on an object but not its surroundings <-- a diagram showing the shape of an object and the forces that act on it a diagram of an object that is free to ...
*November 19, 2013*

**Physics**

Please help quickly his handbag exerts a force of 10 N on the hook. Which of the following values is a possible tension for each side of the cloth loop on the handbag? Each side of the loop exerts a vertical force only, not a horizontal force, on the rest of the handbag. (...
*November 18, 2013*

**Physics**

What is an equilibrant? (Points : 1) an object that has zero net force acting on it two chemical reactions proceeding at the same rate in opposite directions a force that makes the net force on an object zero a force in the same direction as the net force Question 2. 2. How is...
*November 18, 2013*

**Physics**

I'm right you're welcome
*November 18, 2013*

**Physics**

I'm not sure if I am right on these questions please help When should you express a vector along the x-axis as a negative vector? (Points : 1) when its magnitude is less than 1 when the arrow representing the vector would point toward negative x <-- when the arrow ...
*November 18, 2013*

**Physics**

Suppose the observed motion of a moving airplane, illustrated by a distance vs. time graph, is nearly a straight line with zero distance traveled at zero time. State what this shows about the relationship between distance and time, name the type of relationship, and tell what ...
*October 17, 2013*

**Science**

Your thermodynamics calculation involves mass and a change in temperature. What SI base units would you use?
*September 27, 2013*

**Science**

If you divide force (kg* m/s2) by acceleration (m/s2), what units do you get? kg*m2/s4 kg 1/kg m/s
*September 27, 2013*

**Science**

Really confused on this question. A microbiologist measures the speed of a swimming bacterium. The bacterium covers a distance of 2.16 microns in 5.0 seconds. The biologist wished to compare the speed of the bacteria with other animals, but the speeds of other animals are ...
*September 27, 2013*

**Math-Trigonometry**

12) Two jeeps in the desert leave their starting points at noon. The first travels a course of 345º and averages 23 mph. The second travels a course of 45º and averages 20 mph. How far apart are the two jeeps at 10 PM? What is the bearing from the first jeep to the ...
*May 28, 2013*

**Math-Trig**

A ball is tossed up in the air at an angle of 70 degrees with the horizontal and with an initial velocity of 36 ft/sec. What is the position of the ball 1 second after it is released? When will the ball hit the ground? What is the maximum height the ball will reach? How far in...
*May 28, 2013*

**Pre-Algebra**

5 1/13 batches, or would it just be 5 total?
*January 17, 2013*

**Pre-Algebra**

To make a batch of cookies you need 3.25 cups of sugar, if you start off with 16.5 cups of sugar, how many batches of cookies can you make?
*January 17, 2013*

**3rd Grade Math**

I don't understand?
*October 2, 2012*

**American History**

I said C for NUmber 1
*September 24, 2012*

**algebra**

Abigail's car uses 3 2/3 gallons of gas every hour on a long distance trip. How many gallons does the car use in 8 1/2 hours?
*January 31, 2012*

**math**

What is the length if the width is:3.1. The area is 31mi.2. I realy need the answer.
*January 17, 2012*

**Math**

Hello, For math I have to make a graph of two linear relations. One has to be the operating costs of a zoo or amusement park and the other cost of admission for me and my family. Using both linear relations I then have to find another relation that would determine the profit. ...
*July 3, 2011*

**7th grade math pre algebra**

a color called purple is made by mixing 5 oz of red paint with 9oz of blue paint. What percent is blue paint
*March 10, 2011*

**science**

can you think of any examples from the real world where lowered genetic diversity is impacting a species ability to survive
*January 7, 2011*

**world history**

compare Byzantine society to rome
*October 21, 2010*

**Algebra 2 **

The sequence a is defined recursively by: a_1 = 6, and a_(i+1) = a_i + 8 for all i >= 1. Then a_5 = Choose one answer. a. 38 b. 22 c. 30 d. 46 I chose a. Is that right?
*April 8, 2010*

**math**

Bob has 18 model cars and ships. He has 8 more cars than ships. How many cars does he have?
*January 19, 2010*

**Geometry**

Write an equation for the line containing the given points. (2,3) and (4, -4) How would I do this? I understand that first, you find the slope, but how do you find the y intercept? Thank you. :)
*November 4, 2009*

**Environmental science**

Is the tragedy of commons unavoidable
*September 16, 2009*

**chemistry COMPOUNDS?**

A compound contains 60.0 grams carbon and 12.0 grams hydrogen 1) what is the percent of carbon in compound? 2) what is the percent of hydrogen in the compound?
*January 19, 2009*

**Religion**

Who is the bishop now ?
*October 3, 2007*

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