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How would you use the binomial theorem to expand and simplify (2x^2 - 4x + 7)^3.
I haven't done a question like this before.. I need helpp thankss

In the binomial expansion of (a+b)^12 determine

A) the value of k in the term containing a^2k b^k
B) the coefficient of that term, first in c(n,r) form, and then evaluate
C) the number of terms...

The following data was collected from the titration of an unknown concentration of HCl with 1.0 mol/L NaOH using phenolphthalein as the indicator. The initial volume of HCl is 25.0 mL

This is just...

At normal body temperature, 37 degrees Celsius, the value of Kw for water is 2.5 x 10^-14. Calculate [H3O+] and [OH-] at this temperature. Is pure water at 37 degrees Celsius acidic, neutral or...

Cr^3+ oxidized to Cr207^-2
S208^2- is reduced to sulfate ion

How do you write the balanced net ionic equation for the reaction? :confused:

Can someone help me with this problem thanks.

George estimates that there is a 30% chance of rain the next day if he waters the lawn, a 40% chance if he washes the car, and a 50% chance if he...

Ohh I get it now thanks!

I need help writing the net ionic equation for the reaction of permanganate ion with tin(II) ion in an acidic solution. Please and thanks in advance :)

1) NaOH(s)--> Na+(aq) + OH- (aq)
2) Na+(aq) + OH(aq) + H+(aq) + Cl-(aq) --> H2O + Na+(aq) + Cl-(aq)

Target
equation: NaOH(s) + H+(aq) + Cl(aq)--> H20 + Na+(aq) + Cl-(aq)

I need help solving...