Top answers

Give the pH of an alkaline solution

pH 8-14 (anything above pH 7 can be seen as alkaline)
JB
Answered by Jodie B. • Chemistry tutor
3388 Views

Name two types of effectors in the body, and the response that effector makes

Muscle - it contracts Gland - it secretes hormones
JB
Answered by Jodie B. • Biology tutor
29669 Views

How can I improve the sophistication of my writing and achieve an A or A*?

One of the most effective ways to improve the sophistication and quality of your writing to reach the higher grades is to utilise embedded quotations. Consider the following example: Without embedded quotati...
EB
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Explain how hazard-resistant design can reduce the impact of earthquakes in the developing world

Hazard resistant design in developing countries mitigates the impact of earthquakes. Simpe changes reduce the cost of repair and minimise risk of injury. For example, houses are built with steel rod foundati...
LE
Answered by Lucy E. • Geography tutor
17191 Views

How do perturbations to a system affect the equilibrium position of a reaction?

If a perturbation is applied to a system in dynamic equilbirium, the position of equilbirium will shift to favour the reaction which minimises the effect of the perturbation. If the forward reaction is exoth...
GO
Answered by Gwyndaf O. • Chemistry tutor
5782 Views