Andrew

Can you make H3AsO3 by adding acetic acid to NaAsO2?

Which equation has a ΔHrxn that is not equal to ΔHof of the product?

A) O2(g) + H2(g) → H2O2(g)

B) ½O2(g) + H2(g) → H2O(g)

C) H2(g) + ½O2(g) + → H2O(l)

D) NO(g) + ½O2(g) → NO2(l)

E) ½H2(g) + ½Cl2(g) → HCl(g)

lambda = h/((3kT/m)^1/2)

for T

$30 dollars covers 325 square foot. How much per square inch is the cost?

Im getting .000641 cents but that looks wrong

Find a parabola with equation

y = ax2 + bx + c

that has slope

2

at x = 1, slope

−10

at x = −1, and passes through the point

(2, 13).

Greetings,

I am a 19 year old make, 185 pounds, 6 ft tall. I am not as active as I should be. I am trying to become more active; however, I want to eat healthier, too. What are some food types I need to eat for breakfast, lunch, and supper?

I have reduced my calorie intake by around 40%. I have been eating 2 eggs and toast for breakfast, fish or some other type of meat for lunch, and more veggies for supper.

Also, I am a college student, so it is easy to live of fast food. While I do not over eat, a daily diet of chicken sandwiches cannot be giving all the nutrition I need!

A current of 5.14 A is passed through a Pb(NO3)2 solution for 1.60 hours. How much lead is plated out of the solution?

A galvanic (voltaic) cell consists of an electrode composed of chromium in a 1.0 M chromium(III) ion solution and another electrode composed of gold in a 1.0 M gold(III) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Standard reduction potentials can be found here.

I have tried and tried and failed thinking about giving up!

A galvanic (voltaic) cell consists of an electrode composed of chromium in a 1.0 M chromium(III) ion solution and another electrode composed of gold in a 1.0 M gold(III) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Standard reduction potentials can be found here. https://sites.google.com/site/chempendix/potential...

Do I use the one for Cr that goes from 3+ to Cr or 3+ to Cr+?????

Based on the standard reduction potentials which of the following half reactions occurs at the cathode during the electrolysis of an aqueous nickel sulfate?

A. 2H2O → O2 + 4H+ + 4e− (-1.23)

B. Ni2+ + 2e− → Ni (-.25)

C. 2H2O + 2e− → H2 + 2OH− (-.83)

D. Ni → Ni2+ + 2e− ( .25)

()'s are the reduction potential values, double check me!

I know the answer is B, but how???????

For a particular redox reaction Cr is oxidized to CrO42– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.