Which of the following is a reasonable ground-state electron configuration? 1s^(2)2s^(2)2p^(6)3s^(2)
1s^(2)2s^(2)2p^(6)3s^(2)3d^(4)
1s^(2)2s^(2)2d^(10)2p^(3)
1s^(2)2s^(2)2p^(3)2d^(6)

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.)

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat