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Why does temperature effect the resistance of conductors?

The resistance of a conductor increases with temperature. This is because as the temperature increases the atomic lattice of the conductor has more energy so begins to vibrate more. This means it is more ...

PE
Answered by Peter E. Physics tutor
29886 Views

Why does lithium have a higher melting point than sodium

Melting point decreases going from lithium to sodium because sodium is lower down group one therefore it has a greater number of shells. A greater number of shells means a greater atomic radius - a greate...

JO
Answered by Jim O. Chemistry tutor
13372 Views

What is the bonding in a DNA double helix

Adenine, Guanine, Cytosine, Thymine.A binds to T. “A tea for 2” as there are two hydrogen bonds linking adenine on one DNA strand to thymine on another DNA strandc binds to G. 3 hydrogen bonds between the...

JO
Answered by Jim O. Biology tutor
3129 Views

Explain how certain molecules or ions increase the activity of enzymes.

Cofactors and coenzymes bind to an enzyme's allosteric site. This causes interactions between hydrogen bonds in the tertiary structure of the protein to change- altering its structure.The change of struct...

BC
Answered by Ben C. Biology tutor
9189 Views

Discuss the ethical issues that arose in the case of (insert name of case for example Migram's obedience study or Piliavin's subway study.

For a question that starts with discuss you would need to answer with at least three points, four if you have time. You would need to make sure your answer is balanced, therefore giving two strengths of t...

EW
Answered by Emma W. Psychology tutor
5678 Views

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