Recent content by Aiko

Homework Statement Nitrogen trifluoride, NF3, is relatively stable toward decomposition to its elements. In contrast, NCl3 can be dangerous to work with because of its tendency to decompose to N2 + Cl2, Use bond energies to rationalize. Homework Equations Bond energies for N-F is 278...

Can anyone help?

Homework Statement In this investigation, you mix .5g of Mg(s) with 115mL HCl. You measure the temperature change which turns out to be 25.5 degrees C. The equation is as follows: Mg + 2HCL --> MgCl2 + H2 Use the specific heat of water (c=4.184) to find the heat of formation. What is the...

Does anyone know what I am doing wrong?

It's .215m, my bad.

Homework Statement At a waterpark, sleds with riders are sent along a slippery, horizontal surface by the release of a large, compressed spring. The spring with a force constant k = 3600 N/m and negligible mass rests on the frictionless horizontal surface. One end is in contact with a...

If I set the coordinate system on the puck (which is on an incline plane), the force of gravity would be the only force acting on it in the x-direction, thus why it moves. Would it equal to zero or ma? It has a constant velocity in one direction.

Homework Statement A physics student playing with an air hockey table (a frictionless surface) finds that if she gives the puck a velocity of 3.86 m/s along the length ( 1.79 m) of the table at one end, by the time it has reached the other end the puck has drifted a distance 2.40 cm to the...