SFNfan#1

Carbon is a versatile molecule. IT can have many different material properties depending on the environment and the types of molecule it's surrounded by. More importantly it can form single, double, or triple bonds. This is part of the reason for it's versatility. It can bond easily with 4 Hydrogens, more than any other PROMINENT molecules found in the body. It can attach various functional groups to itself. I'm just listing things here, not really reaching a conclusion. I think part of the reason we're not made of silicon is because it's not electronegative enough to give much versatility to our body. IT won't have the ability to attract as much electrons as strongly as carbon. Plus, it's a metalloid so we'd be conducting electricity!

Happy Earth Day!

Eaay! It's all in the imagination of your brain.

First try to graph all the equations in one graph.

THen rotate the resulting shape 360 degrees around the x=9 line. It should look like an upside-down bowl.

And then use the washer method(your washers should be horizontal) to calculate for the volume of the solid.

I could say more but you should learn to think for yourself. That's why I gave you a little starting point on how to approach these type of integration problems. The calculations you should be able to figure out.

Good luck!

^^Great Link on the bottom!

^^Clever Indeed.

Thanks for explaining it the long way.

For the second, arrange them so that each side has a different number of coins for each stack. So, put the first stack 10 on the left and 0 on the right, the next 9 on the left and 1 on the right, etc. Then, when you weigh them, which side is heavier and by how much will tell you the distribution of the lighter coins. For example if the left side is 1 gram heavier, you know it was the first stack. If 0.8 grams heavier, you know it was the second. Etc.

 

Bam! Easy.

I'm trying to understand your explanation but I guess I don't really understand how that scale works because it's shaped like abnormally for a certain reason I'm guessing.

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All are good companies

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http://www.rndsystems.com/

relative atomic mass---------------Could be both but leaning on Chemical

electronegativity------------------Chemical

density------------------------Physical

ionisation energies------------------Chemical

melting point-----------------------Physical

atomic radius-----------------------Chemical

electron affinity------------------------Chemical

boiling point---------------------Physical

Chemical property relates to the Interaction of one element with another while physical property relates solely to that chemical. Often to observe a chemical property such as flammability, the chemical has to undergo a change. Let's say we're trying to find properties of Na or sodium. We have NaCl in a solution of water, they dissolve, so that can lead you to predict certain chemical properties. But to find the melting point of Sodium, all you have to do is burrn sodium in hot temperature. I tried my best to explain. Someone more expert on the field could clarify better!

Hi, I'm an 18 year old in USA

Maryland is my state.

Science has fascinated me ever since I was little and it's my favorite subject.

I'm a HS senior, and I'm interning at the National Cancer Institute.

I've taken AP Bio and am working this year on AP chem and AP environmental.

I want to make connections with various sciences, and think even more critically than I do now so I joined the forum.

PS sorry if my name sounds a bit egotistical, which I'm not.

I was thinking e n

Merged post follows:

Never Mind

Got it on my 1st try!

I got what harlequinne got although Dr. Tesla's solution seems more creative.