Top answers


Why do transition metals form coloured compounds?

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 lower a...
CC
37327 Views

How does the polymerase chain reaction (PCR) work?

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 shor...
SA
Answered by Sunya A. • Biology tutor
4239 Views

What is the doctrine of the Trinity?

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 Greg...
MR
4482 Views

Name the lobes of the cerebrum and describe their function briefly. Also describe the function of the cerebellum and the brainstem.

There are 8 lobes in the cerebrum, 4 in each hemisphere. The frontal lobes are involved in conscious thought, planning, emotions, and problem solving. The parietal lobes are responsible for processing of sen...
AG
3911 Views

What are the main tools to used to meet the key economic objective of ecomic growth?

Economic growth is an increase in the real gdp in the economy. One tool that could be used changing the interest rates. Interest rates are the cost of borrowing, and reward for saving. In order to increase e...
VR
2684 Views