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Explain why Scandium is not considered a true transition metal.

By definition, to be a transition metal, is a d block metal, which forms at least one stable ion, with a partially filled 3d shell. Scandium has one stable ion, Sc 3+ , which posses no 3d orbitals, as Scandi...
JP
Answered by Joe P. • Chemistry tutor
6713 Views

Factorise fully 6xyz + 24x^2yz + 18xy^3z^2

So we need to find common factors for each term: 6xyz, 24x 2 yz and 18xy 3 z 2 . Let's start with the numbers. Do the numbers 6, 24 and 18 have a common factor? Yes, 6 . If we take 6 out of the term we get: ...
TL
Answered by Tom L. • Maths tutor
4145 Views

Solve the equation 3sinh(2x) = 13 - 3e^(2x), answering in the form 0.5ln(k). where k is an integer

We know that: sinh(2x) = 2sinh(x)cosh(x) , therefore the equation becomes 6sinh(x)cosh(x) = 13 - 3e 2x We also know that sinh(x) = 0.5*[e x -e -x ] and that cosh(x) = 0.5*[e x +e -x ], so the equation can be...
MH
5378 Views

What are the major differences between the four gospels?

The four gospels of Mark, Matthew, Luke and John are our primary source for the life of Jesus of Nazareth and are often merged into a singular narrative in the public consciousness. A more careful study reve...
PH
15249 Views

Solve the Simultaneous equation: 6x+3y=13, 14x-9y=9?

First we need to eliminate one of the Variables, to have an equation dependant on one variable. The coefficient for y in equation two is a third of the coefficient of the y in the second equation. Therefore,...
MM
Answered by Matthew M. • Maths tutor
3404 Views