Science & Mathematics - 23 September 2007

I am given two structures and asked to complete the acid base reaction. I'm not sure how to do this and it is hard to explain without the structures given. This is the best I could do. The 2nd one is supposed to be a hexagon with 3 double bonds. And please ignore the periods; I didn't know how else I could deal with the spacing. How do I change them to a base? I thought I was supposed to remove a hydrogen but that is not working. Can someone please help?? Thank you!

.......O
........||
....../....\
H3C OH

...... ____
.....//.........\\
................N
......\____/
.......------- ..<------(double bond)

2007-09-23 13:25:05 · 1 answers · asked by redblitz528 1 in Chemistry

2007-09-23 13:25:05 · 8 answers · asked by quentella_terry 1 in Biology

what would happen if you did an experiment in which the iodine solution was placed in the baggie and the starch solution was in the beaker?

thank you.

2007-09-23 13:23:21 · 1 answers · asked by Anonymous in Biology

2007-09-23 13:21:46 · 3 answers · asked by foxhound 1 in Mathematics

Title: Bean Bag Isotopes (Relative Abundance and Atomic Mass)

Purpose: “The purpose of this experiment is to investigate the mass properties and relative abundance of isotopes for the ‘bean bag’ element (symbol, Bg) and to calculate the atomic mass of this element.”

Procedure:
1. “Sort the atoms in the ‘bean bag’ element sample (Bg) into three isotope groups (1,2, and 3) according to the type of bean. (Assume that each type of bean represents a different isotope and that each bean represents a separate atom.) Place each isotope group into a separate weighing dish or small cup.”

2. “Count and record the number of Bg atoms in each isotope group.”

3. “Measure the total mass of Bg atoms belonging to each isotope group. Record each mass to the nearest 0.01 g in the data table. Note: Zero (tare) the balance with and empty weighing dish and record the mass. Do this for each group.”

Data:
“Bean Bag” Isotope - Number of Atoms - Total Mass of Atoms
1. Red 144 39.9 g
2. Black 40 7.67 g
3. White 10 2.56 g

Results:
“Bean Bag” Isotope - Average Mass - Percent Abundance
1. Red About: .2777 About: 74.2%
2. Black About: .19175 About: 20.62%
3. White About: .256 About: 5.15%

Conclusion:
?

2007-09-23 13:20:52 · 1 answers · asked by Anonymous in Chemistry

A 68.5 skater moving initially at 2.40 on rough horizontal ice comes to rest uniformly in 3.52 due to friction from the ice.

What is the friction force?

2007-09-23 13:20:28 · 1 answers · asked by Burt C 1 in Physics

A cheetah can run at a maximum speed 110 km/h and a gazelle can run at a maximum speed of 80 km/h. If both animals are running at full speed, with the gazelle 91.6 m ahead, how long before the cheetah catches its prey? Answer in units of s.

2007-09-23 13:18:19 · 1 answers · asked by Anonymous in Physics

When you pay the electric company by the kilowatt-hour, what physical quantity are you actually paying for?

voltage
energy
current
power
none of the above

2007-09-23 13:17:51 · 4 answers · asked by WMC 1 in Physics

What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200 M Al(NO3)3 is added to 200.0 mL of 0.100 M KOH?

Al(NO3)3 + KOH --------> Al(OH)3 + K(NO3)

So the limiting reagent is the .01 mols Al(NO3)3.

= (.01)(77.98 g/mol Al(OH)3)) = .7798 g

Is this correct?

2007-09-23 13:17:16 · 1 answers · asked by the Jam 2 in Chemistry

For all positive integers n, the expression n! denotes the product of the first n positive integers. When 5! is expressed as an iteger, what is the ones digit?

2007-09-23 13:16:21 · 3 answers · asked by Anonymous in Mathematics

2007-09-23 13:15:53 · 3 answers · asked by zoe 1 in Physics

Is this function odd/even or neither? Give reasons for your answer...

f(x)= | x^3 |

Thats absolute value of x to the exponent 3

2007-09-23 13:15:53 · 3 answers · asked by Mark 2 in Mathematics

the one guy got the first part right this is the second part someone please help me its due tonite

2007-09-23 13:15:21 · 1 answers · asked by Shawn Carter 1 in Physics

A passenger train is traveling at 29 m/s when the engineer sees a freight train 360m ahead traveling on the same track in the same direction. The freight train is moving at 6 m/s. If the reaction time of the engineer is .4s, what must be the deceleration of the passenger train if a collision is to be avoided?

If someone can help me with this I would greatly appreciate it!

2007-09-23 13:15:21 · 1 answers · asked by kathleen 1 in Physics

i searched all the biology textbooks i could find and cannot seem to find the answer. please help asap

2007-09-23 13:13:20 · 2 answers · asked by ... 3 in Biology

What monomer is found in starch and cellulose?

I think its glucose but im not sure

2007-09-23 13:10:05 · 2 answers · asked by Anonymous in Biology

A silly thought came into my head the other day.....
Do Geoducks communicate....talk to each other?

If so, let me know.
SJ

2007-09-23 13:09:58 · 2 answers · asked by Sea Jackal 1 in Zoology

2007-09-23 13:07:44 · 2 answers · asked by j 2 in Biology

this was in my math book for my HW and i need to check it

2007-09-23 13:04:45 · 17 answers · asked by Anonymous in Mathematics

i need to find a protein that has glutamic acid, alanine, and glycine in it and its chemical composition what are some good sites i can go and look it up?

2007-09-23 13:03:13 · 2 answers · asked by Anonymous in Biology

My lil cuzins in 5th & shes learning about liquids & gases & stuff so it should be pretty easy.

2007-09-23 13:02:24 · 1 answers · asked by M00Dz [heaven] <3 2 in Earth Sciences & Geology

WHAT IS THE MEAN?

2007-09-23 13:00:33 · 9 answers · asked by Cookie 2 in Mathematics

How many zeros are in a googolplex?

2007-09-23 12:57:06 · 6 answers · asked by Anonymous in Mathematics

i need step by step instructions on how to complete this equation by solving for j

14-1/5(j-10)=2/5(25+j)

the 1/5 and 2/5 are fractions

the answer is 10 i just need to know how to get that.

2007-09-23 12:53:19 · 6 answers · asked by Anonymous in Mathematics

x^3 - 9 divided by x^2 + 1

If you can show your work, I would really appreciate it. I'm getting stuck even after adding place holders. Thanks in advance.

2007-09-23 12:52:21 · 2 answers · asked by Panda 3 in Mathematics

the volume of a cone is 100in^3 fine a function that mdoels the height h of the cone in terms of its radius r.

2007-09-23 12:51:01 · 1 answers · asked by Anonymous in Mathematics

im trying to solve this problem but i just dont get it i been trying for hours but still nothing, well here it is:

A ferris wheel has a diameter of 70 feet, and the center is 38 feet off the ground. Eight seats are evenly spaced around the circumference. the entire wheel rotates counter clockwise once every 60 seconds. Assume your riding in the bottom seat (or in other words the one closes to the ground)

a) If the ride last for 3 minutes, draw a graph that records your distance from the ground every 5 seconds for the lenght of the ride.

b) If the ride last for 3 minutes, draw a graph that records your distance to the left or right as measured form the center of the ferris wheel every 5 seconds for the duration of the ride.

c)how high off the ground are u in 2 minutes 22.5 second of the ground

d) how far are u to the left or to the right 1 minute 7.5 second into the ride

You dont have to answer all of them if you cant, but i appreciate all the help you can give me .

2007-09-23 12:48:33 · 3 answers · asked by j'ai faim 3 in Mathematics

so how could i write each equation in point slope form?
point slope form is y2 - y1 = m(x2-x1)

slope -1/4, (7, -5)

slope 5, (-2, 8)

slope -2, (3/1)

2007-09-23 12:45:51 · 4 answers · asked by Anonymous in Mathematics

there are no numbers for this problems....
to graph velocity versus displacement is very challenging...

2007-09-23 12:45:05 · 3 answers · asked by jack86 1 in Physics

name the 3 ways sdeimenrtary rocks form and give an example of each

2007-09-23 12:42:29 · 2 answers · asked by Anonymous in Earth Sciences & Geology