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What is a catalyst?

A catalyst is something that changes the rate of a chemical reaction, without being used up during it. A catalyst provides a different reaction pathway, which requires a lower activation energy than the orig...
RF
Answered by Ryan F. • Chemistry tutor
4804 Views

Evaluate the view that a reduction in UK unemployment is best achieved through the use of supply-side policies.

Intro: UK unemployment currently at 4.4%, a four-decade low, question remains how to lower it further with growth forecasts falling and business confidence faltering. Para 1: A traditional approach would be ...
AS
Answered by Antonio S. • Economics tutor
14119 Views

Explain why it is difficult to make progress to finding a solution to climate change.

Climate change is a very current issue, impacting the planet socially, politically, economically and environmentally. As it is a complex process, it is increasingly difficult to make progress in finding a so...
VR
2632 Views

How do I structure a longer answer/essay style answer in an exam?

The most important thing to remember about answering these longer-style questions in an exam is to PLAN! It might feel like you don't have a lot of time, but just spending five minutes before you start writi...
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Answered by Rose C. • English tutor
3296 Views

Evaluate evidence and arguments that tropical storm characteristics have changed and may change in future as a response to global warming.

In recent decades, evidence suggests that the changing nature of tropical cyclones is related to global warming. Through amplified absorbed solar radiation, sea surface temperatures have increased, and this ...
VR
4223 Views