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State and explain whether NaCl and Mg can conduct electricity in both the solid and molten states.

NaCl cannot conduct electricity in the solid state as the ions are held in an ionic lattice and therefore are not free to conduct. NaCl can conduct in the melt as the ions become mobile and therefore are fre...
JK
Answered by Joseph K. • Chemistry tutor
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How is division presented in the opening scene of King Lear

R.A Foakes has argued that 'King Lear' is a play about a 'divided kingdom'. Indeed, division is presented throughout the Jacobean Tragedy through the physical divide of pre-christian England and the cracked ...
HB
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How does atherosclerosis form?

Atherosclerosis occurs as a result of damage to the endothelial lining of blood vessels. Once the damage has occurred, the body induces an inflammatory response , causing white blood cells to arrive at the s...
DG
Answered by Daniella G. • Biology tutor
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What is the signed area between the curve y = x^2 - 4 and the x-axis?

The curve y = x^2 - 4 is a parabola that crosses the x axis at x = - 2 and x = 2, so the area that we are looking for is the area within the parabola when y <= 0 and -2<= x <= 2. So we expect our ar...
Answered by • Maths tutor
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Explain one way in which starch molecules are adapted to its function in plant cells

Starch molecules are insoluble and therefore don't affect the water potentialThey are also large and therefore can't leave the cellThey are compact and can store lots of energy in a small amount of space
Answered by • Biology tutor
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