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How does the first ionization enthalpy change down group 2?

First ionization enthalpy is the energy required to remove one electron from each atom in one mole of gaseous atoms, forming one mole of gaseous 1+ ions. The first ionization enthalpy is largely dependent on...
MS
Answered by Matthew S. • Chemistry tutor
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The line L1 has vector equation,  L1 = (  6, 1 ,-1  ) + λ ( 2, 1, 0). The line L2 passes through the points (2, 3, −1) and (4, −1, 1). i) find vector equation of L2 ii)show L2 and L1 are perpendicular.

i)L(r) vector line equations in general are in the form L(r) = p1 + λ (p2) where p1 is any ponit on the line and p2 is the vector direction of the line(unsure how to get the whiteboard up or i would describe...
CE
Answered by Charles E. • Maths tutor
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The straight line with equation y=3x-7 does not cross or touch the curve with equation y=2px^2-6px+4p, where p is a constant.(a) Show that 4p^2-20p+9<0 (b) Hence find the set of possible values for p.

(a) If we consider the intersection of these two lines then, 3x-7=2px^2-6px+4p.This can be rearranged into the form ax^2+bx+c=0 such that, 2px^2+(-6p-3)x+4p+7, where a=2p, b=-6p-3 and c=4p+7.However, since t...
WG
Answered by Will G. • Maths tutor
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How do you differentiate using the chain rule?

The chain rule is used where the equation you are looking to differentiate is a function that is itself raised to a power. For example, we might have y = (x 2 -2) 3 and want to differentiate with respect to ...
OB
Answered by Oliver B. • Maths tutor
3953 Views

How do you draw an alkene stereoisomer?

Definition of Stereoisomer The meaning of a stereoisomer is compounds with the same structural formula but a different arrangement of atoms in space. How to Draw You start by drawing the Carbon to Carbon dou...
HM
Answered by Hussain M. • Chemistry tutor
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