Cumulative General Science/Technology Quiz

[SS-18 ICBM]

I'm guessing the MSK-64 scale since it isn't used for gauging the intensity of an earthquake.

 

[Catharsis]

Your reason why the odd one out is so is correct, but the MSK-64 isn't it.

 

[Falcon02]

EDIT: Actually, my answer to Niklas's question isn't really a full one. It should probably be:

a or b must = 0
If a = 0, b must = c
If b = 0, a must = c

1³ + (-1)³ = 0 ³ would also work

in fact wouldn't


x³ + (-x)³ = 0 ³ also work?


if a = -b and c=0 it should work.

 

[Catharsis]

I didn't know negatives were integers. Something new every day...

 

[ggganz]

O_O 4th freakin' grade, dude. Integer=ANY REAL NUMBER WITHOUT A FRACTION.

 

[Catharsis]

Remember, I'm in Britain. The quality of our mathematics teaching is waaaay behind yours.

Anyone willing to guess the answer? SS18 was right in that one of those five is not used to measure the intensity of an earthquake.

 

[StarWorms]

The MSK-64 scale does not have an 'i' in and is therefore the odd one out

 

[Mirc]

Remember, I'm in Britain. The quality of our mathematics teaching is waaaay behind yours.

I have to agree. I've visited a school in England a while ago and they were exactly in the year that corresponded to my year, here in Romania, and they were learning about "Pythagoras". I was wondering what "Pythagoras" they are talking about and I couldn't believe it when I found out it was his theorem about triangles! I had learned about that (in school, knew it before that though) something like 5 years before then!!

(and believe me, when you're something like 14, 5 years matter a lot )

 

[Genocidicbunny]

O_O 4th freakin' grade, dude. Integer=ANY REAL NUMBER WITHOUT A FRACTION.

Id say this is quite uncalled for, dude.

As for the actual topic:

Is the Moment Magnitude scale the odd one out? Cus all the other ones are based on basically squaring the power of the earthquake between the steps while the Moment Magnitude is only going up by the power of 1.5?

I'm probably wrong as last I discussed this was over a year ago.

 

[Catharsis]

Stickciv has the right odd one out, but the wrong reason. The Moment Magnitude scale is the odd one out as it is used to measure the magnitude of an earthquake, whereas all the others are used to measure intensity.

Stickciv's up.

 

[Genocidicbunny]

Again ill hand it off to anyone that wants it.

 

[SS-18 ICBM]

What functional groups are involved in ester linkage?

 

[Genocidicbunny]

The COOH and OH groups are ( acid and alcohol). The two combine to form the COO group which bind the ester as such: R-COO-R'

 

[SS-18 ICBM]

Yes. Your turn.

 

[Genocidicbunny]

A simple one then: What is a Lewis acid?

 

[GoodGame]

Oooh I know I know , except I probably have it confused with a Bronsted acid.

I'll venture a Lewis acid is any molecule that donates a proton to another molecule.

A simple one then: What is a Lewis acid?

 

[dutchfire]

I believe that's a Bronsted acid.

 

[GoodGame]

I believe you are correct.

I believe that's a Bronsted acid.

 

[uppi]

I think, a Lewis acid is a molecule that accepts (donate? - no I think the acid accepts) an electron pair from another molecule.

 

[Genocidicbunny]

I think, a Lewis acid is a molecule that accepts (donate? - no I think the acid accepts) an electron pair from another molecule.

you are correct. It is any element or molecule that accepts an electron pair. Its why metals can act as acids!

Oh yes, your turn.