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Translate the passage into Spanish

Text : I like to recycle because I think it's important not to pollute the environment. Also, I usually turn off the lights and electronic devices and at times I walk to school. Yesterday I showered instead ...
AM
Answered by Angela M. • Spanish tutor
2871 Views

Why does iodine have a higher boiling point than chlorine?

Iodine atoms have more electrons surrounding them than chlorine molecules. This results in Iodine having much stronger inter-molecular forces than chlorine, which require more energy to break, resulting in a...
PS
Answered by Patrick S. • Chemistry tutor
2577 Views

Describe the differences and similarities between diffusion and osmosis.

Diffusion and osmosis both describe the net movement of molecules down a concentration gradient, resulting in an even spread of the molecule over an area over time. Osmosis, however, is more specific as it r...
PS
Answered by Patrick S. • Biology tutor
4935 Views

Outline and evaluate the behaviourist approach (16 marks)

The behaviourist approach has four main assumptions. The first being is that all behaviours are learnt from the environment. The second assumption is that animals and humans learn in the same way which has r...
RJ
101164 Views

Let A, B and C be nxn matrices such that A=BC-CB. Show that the trace of A (denoted Tr(A)) is 0, where the trace of an nxn matrix is defined as the sum of the entries along the leading diagonal.

This is the type of question which requires some out of the box thinking. A sketch is presented below: We start by defining A = (a ij ), B = (b ij ) and C = (c ij ). We then use the definition of matrix mult...
DG
4300 Views