little boy

HCI (s) <=> H+(s) + Cl-(s)

Is there many kinds of infinity? e.g. some infinity is larger that other infinity such as lim x->0, 1/x=infinity and lim x->0, 2/x=infinity both are equal to infinity, but actually the "second infinity"=2*"first infinity"

Are there any alternative computing engine of WolframAlpha?

the video is wrong and misleading! They play trick! The two series start at the same time. That means the upper"2" doesn't start with the lower"-2", instead it start with lower "-1", and then after you cancel out the upper number and lower number, that will be 1+2+4+8....... (the same as the original one), then you get the right answer as infinity!! I think the above is the simplest way to explain. Is it helpful?

"undefined" has no meaning, how does it result in 1/undefined = 0?

The page states : "Nevertheless, there are hydroxide ions there, and we can squeeze this into the Arrhenius theory." so I think it is Arrhenius base

Is NH3 a Arrhenius base? I don't know whether a Arrhenius base requires a OH- in the molecule.

wow.. very detail

yes, They are chemical reactions.

Is it legal to simplify a->b->c as a->c a <=> b <=> c as a <=> c ?

Why is NH4Cl(aq) acidic and CH3COOHNa(aq) basic?

I said it is not a limit, and it is 1/(1/0), not 1/0.

1/(1/0)=? (not limit) Is it zero or undetermined?

w=R1, x=R2, y=R3, R4=z, s=R5, v=voltage of cell, a=voltage of point A, b=voltage of point B, then, Inputting"a-(a-s*((v-a)/w-a/x))=s*((a-s*((v-a)/w-a/x))/z-(v-(a-s*((v-a)/w-a/x)))/y), solve a" on wolframalpha, then a is found Inputting"(s*(b/z-(v-b)/y)+b)-b=s*((v-(s*(b/z-(v-b)/y)+b))/w-(s*(b/z-(v-b)/y)+b)/x), solve b"on wolframalpha, then b is found It is certainly correct as I have tested it many times. I had been calculating it for about 6 hours.(so crazy..... )

How is V1-V2 (stage 3, point 6) used in calculation? Why is it needed to know? clear image

I even didn't know it is called bridge circuit, therefore I had not searched the internet. Now I found a possible solution. voltage A=V[R2/(R1+R2)], voltage B=V[R4/(R3+R4)] It is deduced by My link, please check whether I am correct.

Assuming the voltage of the negative terminal is 0, how calculate the voltage of point A and B? And can anyone draw a simpler equivalent circuit for me. God bless the people helping me. picture beside, why am I not allowed to use the image extension on this board?

what happen after the switch is closed? I am confused.

Thank, now I am clear How does it deduce that V1=R1/(R1+R2) x V while R1 and R2 are not in series? (highlighted) image link

Then it is incorrect to say that R1 and R2 are in series?

My link Is it correct to say that R1 and R2 are in series , R1 and R3 are in parallel? God bless the people answering me. Is there a simpler equivalent circuit?

now I understand, thankyou

My link This is a the page of my exercise. After the switch is moved to position B, it says a parallel circuit is established, but circuit seems not completed because one terminal of the cell is not connected.

God bless the people answering me.

What is electric breakdown? Can anyone explain it briefly? The results from Google are too complicated and not understandable.