# Posts by annon

Total # Posts: 37

**science(chem 11)**

did a lab on separation of salt and sand. the initial mass that my teacher gave me was the stock mixture that was: salt= 54.79g; sand= 97.90g. after the experiment my mass were as follow: salt= 1.35g; sand= 3.17g. question #1 was asking about the % composition of the mixture ...

*October 14, 2016*

**chemistry 11**

oh so i was doing it right all along but when i calculate the %error for the salt it gives me something like .1.. then you multiply by 100(to get percentage) and it gives you 100+%. are you supposed to get that?

*October 14, 2016*

**chemistry 11**

i did a lab on separation of salt and sand. the initial mass that my teacher gave me was the stock mixture that was: salt= 54.79g; sand= 97.90g. after the experiment my mass were as follow: salt= 1.35g; sand= 3.17g. question #1 was asking about the % composition of the mixture...

*October 14, 2016*

**chemistry 11**

i don't get what you mean by "see your post above"? am i doing something wrong or the way im saying it you don't understand it. pls help me.

*October 13, 2016*

**chemistry 11**

i did a lab on separation of salt and sand. the initial mass that my teacher gave me was the stock mixture that was: salt= 54.79g; sand= 97.90g. after the experiment my mass were as follow: salt= 1.35g; sand= 3.17g. question #1 was asking about the % composition of the mixture...

*October 13, 2016*

**Science**

since density equals mass/volume it would be. 200g/150ml~1.3

*October 13, 2016*

**Language Arts Help**

Hi, I need u guys to check this Connexus work for me. I'm leaving connexus soon so this may be the only time u see me -> = My Guess/Answer ________________________________________ 1. What is the purpose of subheadings in informational text? A. To Highlight Ideas B. To ...

*December 4, 2015*

**Spanish**

c b/c its the yo form...

*October 26, 2015*

**physics**

As preparation for this problem, review Conceptual Example 10. The drawing shows two planes each dropping an empty fuel tank. At the moment of release each plane has the same speed of 105 m/s, and each tank is at the same height of 4.79 km above the ground. Although the speeds...

*August 13, 2015*

**gr. 12 vectars**

a paralelogram has an area of 74 cm^2 side lengths are 9cm x 10 cm what are the measures of the interir angles of the paralelogram? i did: Area=|axb| 74=9(10)sin(angle) sin^-1(74/90)=angle angle=55.3 degrees

*February 10, 2015*

**Vector Cross & Dot Product**

Given vector a=(2,1,0)and vector b=(-1,0,3) and vector c=(4,-1,1), calculate the following triple scalar and triple vector products. 1. c x a dot b What I did: c x a = ((-1)(0)-(1)(1), (1)(2)-(4)(0), (-1)(2)-(4)(1) =(-1, 2, -6) (cxa) dot b =(-1,2,-6) dot (-1,0,3) =(-1)(-1)+(2...

*February 9, 2015*

**chemistry**

If 124 g of ice at 0.0°C is added to 1.36 L of water at 90 °C, what is the final temperature of the mixture?

*November 15, 2014*

**Geometry**

die

*May 19, 2014*

**Math**

Raul says he has equal numbers of dimes and quarters and four times as many nickles as dimes. The value of his nickles and dimes is 50 cents more than the value of his quarters. How many of each kind of coin does he have?

*May 9, 2013*

**science**

Composite Volcano

*November 29, 2012*

**statistics**

800 people where asked what sport they liked 120 said football what is this as a fraction in its lowest form ?

*February 28, 2012*

**English**

I am waiting for the rain for such a Long time This heat is suffocating Air conditioner has just become the prime Opening the windows and everywhere there is grime Feels like I am in a desert Will it ever Rain or will it stay forever hazard? Time has passed and not a single ...

*June 6, 2011*

**maths**

About 5.4 cm ^2. (decimal keeps on repeating with different numbers). P=lw Since the perimeter is 85 cm, and the width is 15.4, you substitude and solve to get 15.7x=85. Do the same for both sides (divide 15.7) and you get x= about 5.4. God Bless! <3

*April 28, 2011*

**6th Grade Math**

thank you so much!!!!

*April 28, 2011*

**please help... history/social studies?**

Oh yeah! I remeber I learned THIS in schooL! I remeber now!! THANK YOU SOO MUCH MS.SUE! <3

*April 10, 2011*

**please help... history/social studies?**

What important contribution did the Phoenicians make to world civilizations? Hoesntly, I don't know. How was htat contribution spread to other cultures?

*April 10, 2011*

**Chemisdtry - Lewis Structures (check + help)**

C has 4 electrons, O has 6 electrons + -2 charge adds 2 more electrons 4 + (3 * 6) + 2 = 24 electrons 4 atoms * 8 electrons per atom = 32 electrons 32 – 24 = 8 electrons 8 electrons ÷ 2 electrons per bond = 4 bonds 24 – 8 = 16 electrons 16 electrons = 8 pairs ...

*February 13, 2011*

**Geometry**

B is the midpoint of AC, if AB=3x+4 and AC = 15x-19, find x and bc

*September 13, 2010*

**Math Challenge**

Please help, even if you only know 1 answer. 1. The length of each side of rectangle R is an integer, and the area of R is 2009. What is the largest possible perimeter of R? 2. If i place all three operational symbols +, -, x, in all possible way into the blanks if the ...

*March 30, 2009*

**Algebra Problem**

7,5 r right

*March 21, 2008*

**Math**

25mpg..excluding other factors 1 mph = 1.609 km/h

*March 19, 2008*

**english**

MLA No these are all my words i did not quote anything but stated his position from his essays.. thanks

*March 18, 2008*

**American History**

Try to read a little about the roaring 20's and what happened to women at that time. The womens rights movement is a part of something much larger. Woman fought for a long time. The Bill of Rights, due process clause of the 14th Amendment and related support helped women.

*March 18, 2008*

**marketing**

they just want you hooked, want their product to cycle through your diet as often as possible. I feel that the wellness and health are just used to push their products, quick meals, snacks...like i said as often as possible, fast. Kraft products are full of things that make u ...

*March 18, 2008*

**Algebra**

what do u need to figure out with the 2 givens?

*March 18, 2008*

**Physical Science**

(B) is typically measured in either teslas (SI units) or gauss (cgs units), while the magnetic field intensity (H) is measured in Amperes/meter (SI units) or oersted (cgs units). First, changes in either of these fields can cause ("induce") changes in the other, ...

*March 16, 2008*

**computers**

array programming, module-based programming and object-based programming (Fortran 90 / 95), and object-oriented and generic programming (Fortran 2003).

*March 13, 2008*

**home economics**

buy hybrids. reduction in .35 to .20 or less

*March 11, 2008*

**computers**

Count in increments of 256MB

*February 22, 2008*

**computers**

Please ignore the last two answers. Suppose Fred's Computers advertises that their new computer comes with exactly 1,200 megabytes of RAM in main memory. Why is this unlikely to be true? Answer: The reason this is unlikely true is due to the 1200MB of RAM. RAM comes in ...

*February 22, 2008*

**physics**

(1) T cos theta = mg m = (T/g) cos theta (2) T sin theta = m V^2/r = (T/g) cos theta V^2/r tan theta = V^2/(gr) V = sqrt [g r tan theta) 3) V * period = V/f = 2 pi r f = [1/(2 pi)]* sqrt (g r tan theta)

*November 4, 2007*

**Preschool/child dictation**

A. When writing dictation for preschool it is most important to respect their words and write them exactly as they say them. Not doing so would confuse them when you read back to them what they have said. (This response was copied verbatim from another website; I happen to ...

*September 13, 2007*

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