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Describe the differences in structure of arteries, veins and capillaries.

Arteries: carry blood away from the heart, have thick muscular walls, have small lumens, and contains blood under high pressure.Veins: carry blood to the heart, have thin...

Answered by Mehjaben R. • Biology tutor

1866 Views

Three different brands of rice are on sale, which brand provides the best value for money? Their prices are: Brand A) 250g for £3.21, Brand B) 400g for £5.30, Brand C) 750g for £8.80

In order to compare the prices of each of these brands of rice, we will work out how much it costs to buy 100g of each brand - by using a consistent weight we can measure the prices against each other. Th...

Answered by Gregory C. • Maths tutor

2690 Views

Give the general formula for the alkane homologous series and explain their similarities

C_nH_2n+2Alkanes have similar chemical properties, have the same general formula and display a gradual change in melting and boiling points

Answered by Ashleigh C. • Chemistry tutor

2238 Views

Give the full ionic equation and net ionic reaction for Ba(NO3)2 (aq) + Na2SO4 (aq) → BaSO4 (s) + 2NaNO3 (aq)

The full ionic equation describes the components as individual ions, as this is how they exist in aqueous solution. Ba²⁺ + 2 NO^3- + 2 Na⁺ + SO₄^2- → B...

Answered by Ashleigh C. • Chemistry tutor

13028 Views

Analyse and interpret one secular (non-religious) painting produced in the fifteenth century.

The genre of secular art is a product of modern art-historical scholarship. Paintings of a secular nature are said to depict non-religious subjects or scenes. The extent to which ‘secular art’ as a term c...

Answered by Laura Grace S. • History of Art tutor

1692 Views