Thursday

December 18, 2014

December 18, 2014

Total # Posts: 29

**chemistry**

We only can make ozone layer by adding 3 oxygen atoms or we cannot
*November 4, 2014*

**math**

count by eigths to create a number line for the data that starts at 1 and ends at 3.
*April 24, 2014*

**math**

YES The 6th grade classes have started a contest to collect cans for recycling. The first class to reach 500 cans will win. The chart below shows the two classes in the lead. How many cans does each class have left to meet their goal? show the work . CHART CLASS 1 WEEK # ...
*March 24, 2014*

**math**

The 6th grade classes have started a contest to collect cans for recycling. The first class to reach 500 cans will win. The chart below shows the two classes in the lead. How many cans does each class have left to meet their goal? show the work .
*March 24, 2014*

**math**

a number is called a perfect number if it equals the sum of all its factors except itself. for instance , 6 is a perfect number because its factors are 1,2,3 and 6 and 1 + 2 + 3 = 6 .What is the next greater perfect number >
*January 15, 2014*

**science**

what is wrong with the statement "you look exactly like your mother"
*November 13, 2013*

**math **

Hideki is collecting pennies . Each month in may, june, and july he put 200 pennies in a jug . He put 300 pennies in th jug in August and 300 in September. How many pennies did Hideki put in the jug between May and September ?
*November 6, 2013*

**Maths/ Calc**

Answer
*April 18, 2013*

**science**

0.042g of Magnesium was reacted with excess HCl at S.T.P. A. Write the equation for the reaction B. How many moles of Mg were used? C. What volume of Hydrogen is produced in this reaction?_
*November 28, 2012*

**chemistry**

-15.3
*September 11, 2012*

**statistics**

You are conducting an experiment to see if a given therapy works to reduce test anxiety in a sample of college students. A standard measure of test anxiety is known to produce a = 19. In the sample you draw of 86 the mean is equal 17.5 with standard deviation s = 10. a- ...
*January 6, 2012*

**science**

hydrogen and oxygen combine in the ratio of 1:8 by mass to form water.what mass of oxygen gas would be required to react completely with 3grams of hydrogen gas?
*November 22, 2011*

**physics**

IN PHYSICS TENTH CLASS ADDRESS OF AN ELECTRON
*May 13, 2011*

**math**

how to write 2nd may 2014 ...General knowlegde- How to writ
*March 28, 2011*

**CHEM**

Calculate q when a system does 54 J of work and its energy is increased by 61 J?? I know the total change in energy of a system is "q + w", but I don't don't how to apply this.
*December 12, 2010*

**chemistry**

How many ml of water at 10 degrees c must be added to 75 ml of water at 35 degrees c to obtain a final temperature of 19 c?
*December 11, 2010*

**5th grade**

1332
*October 29, 2010*

**Math**

There are 13 flavbors at a local ice cream parlor. Is the number 13 a prime number or a composite number? If it is composite, write the number as the product of prime numbers
*August 9, 2010*

**math**

Cruz and his friend, Penny need to determine what numbers are prime and what numbers are composite for homework assignment. Cruz says that the number 5 is a composite number because it has the factors 2 and 2.5. Explain what is wrong with his reasoning
*August 5, 2010*

**chemistry**

Just..... don't get it A column packing for chromatography consists of a mixture of two types of particles. Assume that the particles in the batch being sampled are spherical with a radius of 0.5 mm. 36% of the particles appeared to be pink and are known to have a ...
*March 29, 2010*

**math**

Find the volume of a cone with radius 26.8 inches and height 31.7 inches. Round the answer to one decimal place.
*October 9, 2009*

**6th grade math**

The area of each square is twice the area of the next smaller square drawn in it. if the area of the smallest square is 3 square cms. what is the area of the largest square
*September 9, 2009*

**3rd grade math**

examples of quadrilateral find at home
*April 15, 2009*

**physics**

what are the different layers of fiber optics
*May 28, 2008*

**Math: Symbolic Logic!**

N<->O
*May 28, 2008*

**Intermediate Algebre**

X=-25/2
*May 28, 2008*

**Probabilty/Statistics**

i need to learn probability & statistics. completly.
*February 8, 2008*

**trees**

how many nonisomorphic unrooted trees and rooted trees are there with 4 vertices?
*November 14, 2007*

**social studies**

pictures of people who help us i.e tailor,teacher. This site has cartoon-type pictures of people who help us. http://www.ltscotland.org.uk/earlyyears/resources/illustrations/people/index.asp If you want photographs of real people, go to Google.com and search for specific ...
*October 8, 2006*

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