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Use your own knowledge to compare and contrast the physical and chemical properties of Transition metals and group 2 elements. Use examples to explain your answer.

Answer: Students should be able to list the typical properties of transition metals Physicalhigh melting point / DensityFormation of coloured compoundsFormation of ions with different chargesChemicalLow reac...
CK
Answered by Chris K. • Chemistry tutor
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How would you analyse and use a source?

Analysing a Source Walkthrough Circles of Inference (Use whiteboard feature) Questions to address immediately (particularly if there is limited context to the source) · What is the source depicting?· What ca...
TB
Answered by Toby B. • History tutor
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describe the structure of prokaryotic cell (4 marks)

they don't have a nucleus, the DNA is present in cytoplasm. prokaryotic cell has a cell membrane that controls movement of molecules in and out of the cell. prokaryotic cells also have cell walls that provid...
JL
Answered by Julia L. • Biology tutor
3124 Views

How do you calculate the sum of all internal angles of a regular polygon?

Use the formula (n-2)*180 where n is the number of sides on the polygon.
BC
Answered by Ben C. • Maths tutor
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The equation of the line L1 is y=3x–2. The equation of the line L2 is 3y–9x+5=0. Show that these two lines are parallel.

If two lines are parallel, then they will have the same gradient. The gradient of the curve is represented by m in the equation y=mx + c. For this question, if L2 is parallel to L1, m will therefore equal 3 ...
SA
Answered by Sophie A. • Maths tutor
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