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Explain the general trend in first ionisation energy across period 2 in the periodic table.

  • Across period 2, the nuclear charge increases from Li (3+) to Ne (10+) as protons are added to the nucleus. - The electros are removed from the same main energy level and electrons in the same main ...
EA
Answered by Eyad A. Chemistry tutor
27800 Views

Explain, with the help of diagrams, the effect of an increase in the price of petrol is likely to have on (i) The market for cars. (ii) The market for coal.

The petrol market over the past decades has had many price fluctuations and it is important to understand that changes in the price of petrol can have significant effect in other markets such as the marke...

AS
18579 Views

Explain which are the main costituents of carbohydrates and their structure

Carbohydrates, as the word says, are made up of Carbon, Oxygen and Hydrogen. They are commonly known as suggarsand are present in different forms in some kind of foods.  We can divide them in different gr...

SM
Answered by Sara M. Biology tutor
2301 Views

How do I find the derivative of 2^x?

To find the derivative of any number to the power "x", such as 2x, 5x, or even 4.13x, we first consider the general form ax. We need to be a little cr...

KS
Answered by Katerina S. Maths tutor
40079 Views

The program I've written doesn't do what its supposed to! I don't have any errors, so I don't even know where to start looking for the problem. Where can I begin?

Learning strategies for isolating issues in non-trivial programs is essential for successful programming of any level. Unlike syntax or run-time errors which can often be looked up online or in a book, a ...

BC
Answered by Brendan C. Computing tutor
1700 Views

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