The particles are moving fastest in Region D) 5.
As temperature increases, so does the average kinetic energy (speed) of the molecules.
I believe that the answer is A i could be wrong though.
Density= mass/volume aluminum can= 174 •g/ 4 • cm ^3. =2.76•g•cm ^-3
<em>the</em><em> </em><em>number</em><em> of</em><em> </em><em>nitrogen</em><em> </em><em>atoms</em><em> </em><em>in</em><em> </em><em>the </em><em>compound</em><em> </em><em>is</em><em> </em><em>two</em>
That is choice A.
The products are different from the reactants.
This may be easy to see - for example when one of the products is precipitated, like when you add BaCL2 to Na2SO4. The BaSO4 formed is insoluble in water and appears as a white precipitate.