Search over 10,000 free study notes

Transition elements have 3d orbitals with the same energy level however when molecules/ligands form dative covalent bonds with a metal ion, the electron repulsion causes the 3d orbitals to split into lowe...

A rivers long profile typically varies in accordance with the upper, middle and lower course.
The upper course typically has a steeper profile, a v shaped bottom, is narrower with faster flowing wate...

PCR is a method to isolate and amplify a specific fragment of DNA that you would like to study. The reaction is set up with template DNA, primers, DNA polymerase enzyme and free nucleotides. Primers are s...

The lung can be divided into different sections regarding its function. The tube that connects the airway to the lungs is called the trachea, which is made of cartilage rings. These are flexible, and allo...

The doctrine of the Trinity is the Christian understanding of God, which has been developed over the centuries. It was first explored in the early days of the Church by theologians such as Augustine and G...