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Why do ionically bonded compounds only conduct electricity when molten?

When molten, the ions of an ionically bonded compound can move freely carrying charge. When solid, the oppositely charged ions are held in place by strong forces and therefore cannot conduct electricity.<...

JL
Answered by Jenny L. • Chemistry tutor
2256 Views

What is the equation of the straight line passing through the points (2,3) and (3,5)?

There are three steps to solving these types of straight line problems. 1) Find the gradient (slope) of the line. 2) Find the point slope formula. 3) Solve for y.1) The gradient (m) of the line bet...

OM
Answered by Omar M. • Maths tutor
5341 Views

What are the stationary points of the curve (1/3)x^3 - 2x^2 + 3x + 2 and what is the nature of each stationary point.

Firstly, a stationary point is a point on the curve where the gradient of the tangent line is equal to 0. Here, this occurs at points where the first derivative of f(x) = 1/3x

OM
Answered by Omar M. • Maths tutor
7246 Views

Explain how an action potential is propagated across a synapse in a muscles (3 marks)

Any three of the following, in the correct order.
Action potential arrives at the pre-synaptic membrane Causes the voltage gated Ca2+ channels in the pre synaptic terminal to openCa2+ enters the pre ...

Answered by • Biology tutor
2284 Views

Expand and simplify: (10-x)/2 = 2x - 6

This is a typical example of a 3 mark question on a GCSE higher paper. The first mark would be awarded for multiplying both sides of the equation by 2, and then expanding the brackets:10 - x =2(2x-6)10 - ...

AG
Answered by Amy G. • Maths tutor
3212 Views

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