Homework Statement
Given the following reactions
Fe2O3 + 3CO ---> 2Fe + 3CO2 DeltaH = -28.0kJ
3Fe + 4CO2 ---> 4CO + Fe3O4 DeltaH = 12.5kJ
the enthalpy of the reactions of Fe2O3 with CO
3Fe2O3 + CO ---> CO2 +2Fe3O4
what is DeltaH for this equation? ________ kJ
Homework Equations
DeltaH =...
Homework Statement
( 1.3 g NaCl )+( 3.5 g AgNO3) ---> (xg AgCl) + (yg NaNO3)
How many grams of each product result from the following reactions, and how many grams of which reactant is left over?
Enter your answers numerically separated by commas. Express your answer using two...
I'm currently taking prerequisite classes at a community college (second semester) to enroll in a college which will grant me a PharmD but I'm not sure if I really want to become a pharmacist. The idea to be a pharmacist was actually my mothers and I had no better plans being a senior graduating...
So I'm taking chemistry again after a five hear hiatus from the topic and I would really appreciate an explanation on a certain formula.
magnesium +oxygen forms magnesium oxide
Mg+O2=MgO
My question is, what happened to the 1 of the oxygen atoms?
Shouldn't it be MgO2?
Homework Statement
What is the density of lithium metal in g/cm^3 if a cylindrical wire with a diameter of 2.40mm and a length of 15.0cm has a mass of 0.3624g?
Homework Equations
D=m/V
The Attempt at a Solution
The problem I'm having is I don't understand what the problem is asking. How do...
Yes, I apologize, I did mean terms.
Because the terms of an arithmetic sequence always vary by a constant
x+a, x+2a. x+3a
you can attain a, the constant, by subtracting two consecutive terms.
(x+2a)-(x+a)=a or (x+3a)-(x+2a)=a
Homework Statement
Find x so that x+5, 3x+1, and 4x+1 are consecutive terms of an arithmetic sequence.
Not really sure how to do the problem at all. Some assistance would be much appreciated.