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What is the electron configuration of Oxygen? Give it in terms of shells and subshells.

[He] 2s2 2p4There are 4 potential shells of electrons for the elements in the periodic table, denoted by the first number, 1 to 4.Within each shell there is a matching number of subshells; in shell 1 there i...
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Answered by David W. • Chemistry tutor
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What are causes of globalisation?

Improvements in transport infrastructure and operations: Resulted in quick, reliable and cheap methods to allow production to be seperated around the world. 2. Improvements in IT and communication: Allow com...
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Answered by Jamie A. • Economics tutor
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"What are the causes of an appreciation (outward shift of demand) for a floating exchange rate?"

Increase in incomes abroad: Increased incomes abroad increases their MPM. This increases demand for UK exports and thus demadn for the pound shifts. 2. A relative rise in UK interest rates: As UK IR increase...
Answered by • Economics tutor
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What is Eutrophication?

When it rains, nitrates added to the soil by fertilisers can run off into water courses, such as lakes. This is called leaching. The high level of nitrates in the water accelerates the growth of plants at th...
Answered by • Biology tutor
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A sodium hydroxide solution is made by dissolving 3.5 g of sodium hydroxide with 500 cm^3 of water. What is the concentration of the solution in g dm^-1?

3.5 g of sodium500 cm 3 of water is 0.5 dm 3 3.5 / 0.5 = 7 g dm -3
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Answered by Anna H. • Chemistry tutor
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