Friday
December 13, 2013

# Posts by Megan

Total # Posts: 887

chemistry
Mg(ClO32=MgCl2+3O2 12.omolMg(ClO3)2produces molMgCl2and MolO2 3.00 molofMg(ClO3)2produces what mass of O2

ALGEBRA
first off, I like to circle to common ones... so I first circle the two x's. Since we are subtracting, it would be x-x which is 0. Thenm i circled the 2y's. It would be 2y - (-2Y) aka 2y +2y which is 4y. Then, -2z-2z which is -4z. it would be 0+4y-4z and you obviously ...

chemistry
How many moles of ions are contained in 1.4 L of a 1.6 M solution of Mg(NO3)2?

chemistry
How many moles of ions (cations and anions) are contained in 1.2 L of a 1.9 M solution of KCl? KCl K+ + Cl-)

chemistry
What is the molarity of each kind of ion in a solution of magnesium chloride that contains 29.0 g of magnesium chloride dissolved in enough water to make 1.73 L of solution? MgCl2 Mg2+ + 2 Cl-

ap chemistry
A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr 3+ and a gold electrode in a solution that is 1.0 M in Au 3+ . a) Provide the half cell reactions for each of the electrodes. b) Which is the anode and which is the cathode? How did you decide? c) Give an overa...

Geometry
Find the center of the circle using the equation provided. Please show work! x^2 + y^2 = 16

geometry
Give an example of an infinite set.

physics
Elena, for some reason I'm getting an answer of -3 (8.00 x 10^-12) x (d-x)^2 = (6.00 x 10^-12) x (x^2) (d-x)^2/x^2 = 7.5 x 10^-1 (d-x)(d-x)/x^2 = 7.50 x 10^-1 x^2-x+0.25/x^2= 7.50 x 10^-1 then I get x = -3 Can you help! I'm not sure where i am going wrong.

physics
Two spheres with charges of 4.00nC and 3.00nC are placed 0.500m apart. At what point between the two charges must the third charge of 2.00cN be placed so that the net electrostatic force acting on this charge is zero?

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