Which of the following reactions will occur at the anode in an electrochemical cell?
2Ag+ (aq) + 2e ‾→ 2Ag (s)
Cu^2+ (aq) + 2e ‾→ Cu (s)
Cu^2+ (aq) + Zn (s) ‾→ Zn^2+ (aq) + Cu (s)
Cd (s) ‾→ Cd^2+
They look the same to me? :\
Answers appreciated.-Tetrahedral is 5 atoms bonded together, trigonal pyramidal is 4 - with a lone pair replacing the fifth.
A reaction raises the temperature of 40.0g of water by 5.00°C. What is the enthalpy change for the reaction?
The specific heat density of water are 4.18 J K-1 g-1 and 0.997g mL-1 respectively.
I kno
In Chem class we lit Mg on fire and let it burn. It says on the lab paper that its a synthesis reaction but how would you balanced that?-2 Mg + O2 → 2 MgO
Magnesium oxide is being synthesized.
Chemistry problem????-Take 1 litre of the solution
This has mass = 1000g ( from the density given)
This contains 2 mol NaOH = 40*2g = 80g
Mass of water = 920gMol NaOH = 2.0mol
You have 2.0mol in 920g
how would you find the empirical formula of a compound with %C=66.41, %H=5.58, %X=28.01 (where X is a halide)?-1] Choose, arbitrarily, a basis for calculation. I choose 100g
2] THat means there are 66
what is the final temperature of 75 grams of water initially at 25 degrees Celcius. upon the absorption of 2800 Joules of heat? work shown or exaplained would be greatly appreciated!!!!-so this isnt a
Someone please help me! My final is on friday and I dont know how to do this!
a.) 4.19 L
b.) 23.6 L
c.) 10.1 L
d.) 73.2 L
e.) 8.45 L
Thanks!-Use the combined gas law ---- P1V1/T1 = P2V2/T2
Change d
Ive been stuck on this problem for 4 hours and i dont know what to do.
H3PO4+3NaOH----> Na3PO4+3H2O
if 30.00ml of 0.1000N NaOH was required to neutralize 15.00ml of an H3PO4 solution, what is the no
How much heat (in joules) is liberated when 1.170Lof ozone at 18 degrees celsius and 62.8 mm Hgdecomposes to ordinary oxygen, O2?-wow thats quite a question they gave you there but is here how to solv
system is changed in a two step process:
Step 1: The system absorbs 70 J of heat while 30 J of work is done on it.
Step 2: The system releases 30 J of heat to the surroundings while performing 70 J o