Tuesday

March 31, 2015

March 31, 2015

Total # Posts: 108

**General Chemestry**

Diacetyl, a substance contributing to characteristic flavor and aroma of butter, consist of 55.8% C, 7.03% H, and 37.17% O. In the gaseous state at 100 C and 747 torr, a 0.30 gram sample occupies a volume of 111ml. What is the molacular formula of diacetyl?
*October 26, 2008*

**Algebra 2**

a2x+5a2x2-2ax
*August 17, 2008*

**african history**

the colonizers were the british people, Africans became slaves because they were forced by the british people and on the other side they had no choice.
*January 28, 2008*

**Math**

Each division of the NBA HAS 7 teams. How many different division standings are possible at the end of the season?
*September 20, 2007*

**Math**

Your favorite CD consists of 12 songs. If you play the CD randoming on your CD player, how many play list are possible?
*September 20, 2007*

**Math**

thank you very much
*September 20, 2007*

**Math**

The registration code for a new softwear game you purchased consists of a string of 3 letters followed by 5 digits. How many different registration codes are possible? If you lost your registration code and had to quess, what is the probability that you will answer the correct...
*September 20, 2007*

**math**

How many n-digit decimal sequences (using digits 0-9) are there with k 1s? Decimal sequences meaning you can have as many 0s in front of a number. For example: 000001234557891111 would be consider valid. So how do i come up with an equation? See my response to Sana's ...
*October 15, 2006*