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Explain what is meant by thermal decomposition

A reaction in which a substance is broken down into 2 or more substances by heat. An example is the breakdown of calcium carbonate into carbon dioxide and calcium oxide.
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Answered by Laura C. • Chemistry tutor
19411 Views

Find where the graph of y=3x^2+7x-6 crosses the x axis

At the point where the line crosses the x axis, y=0 3x^2+7x-6=0 (3x-2)(x+3)=0 3x-2=0 or x+3=0 giving x=2/3 and x=-3 so the line crosses the x axis at (2/3,0) and (-3,0)
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Answered by Demi B. • Maths tutor
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Differentiate x^2 + y^2 with respect to x

use the chain rule on the y^2 term to get 2y*(dy/dx) hence the overall solution is 2x + 2y*(dy/dx)
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Answered by Ken D. • Maths tutor
26407 Views

What are the characteristics of oceanic crust?

Oceanic crust is thinner and more dense than continental crust. This is because it has been compressed by the weight of the oceans it carries above it. It is also much younger than Continental crust, as it i...
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Answered by Josie O. • Geography tutor
41596 Views

What should I talk about in my personal statement?

Condensing your personality and achievements into just 4000 characters to impress an Admissions Tutor might seem an impossible task at first glance! Everyone you talk to will give you different advice on wha...
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