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Lithium and potassium are both in Group 1 of the periodic table. Explain why.

Li and K both have one electron in their outer shell and therefore perform chemical reactions in a similar way and share certain characteristics.

JD
Answered by Joshua D. Chemistry tutor
3101 Views

Describe three differences between a motor neurone and a sensory neurone.

A motor neurone has no or a very short dendron whereas a sensory neurone has a long dendron. A sensory neurone's cell body is found 'in the middle' of the neurone whereas a motor neurone's cell body is fo...

JD
Answered by Joshua D. Biology tutor
7277 Views

Define the term osmosis.

Osmosis is the net movement of water molecules from an area of high water potential to low water potential, commonly across a partially permeable membrane such as a cell's surface membrane.

JD
Answered by Joshua D. Biology tutor
3175 Views

Solve 13-x > 3+4x

13-x-3>4x
10>4x+x
10>5x
2>x
x<2

NE
Answered by Nathan E. Maths tutor
5310 Views

Find the solution the the differential equation d^2y/dx^2 + (3/2)dy/dx + y = 22e^(-4x)

We first find the complementary function by guessing y=e^(kx). Substituting this into the equation d^2y/dx^2 + (3/2)dy/dx + y = 0. we find k^2 + (3/2)k + 1 = 0 which factorises into (k+2)(k+1/2). So our c...

NE
7266 Views

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