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5x -2y = 33 (substract) 5x + 8y = 18 -10y = 15y = -1.55x + 8(-1.5) = 18 5x = 30 x= 6
When a salt is solid it forms a a crystaline structure and a fixed ionic lattice. This means the ions are stationary and cannot move in the solution and therefore is unable to conduct electricity. However...
The temperature moves the equilibrium differently depending on if the forwards reaction is exothermic or endothermic. If its endothermic the equilibrium moves to the right giving more products. The additi...
Boiling point increases down the group, because of increasing strength of van der Waals (intermolecular) forces. More energy is required to break van der Waals (intermolecular) forces.Follow up questions ...
Start by expanding (a+b)7, using Pascal's Triangle or the binomial coefficient function to work out the coefficients:a7 + 7a6b + 21a5b2 + 35a4JWAnswered by Josef W. • Maths tutor7193 Views
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