Which is best explanation of electric current in a wire? a) protons are pushed along by electric forces b) electrons build up in the wire and create a charge c) atoms move because of heat d) electrons flow because of electrical attraction and repulsion

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

What is the overall order of reaction for rate = k[no]2[o2]

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li