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How do each of ionic, covalent and metallic bonding compare?

To begin, it is important to note that each of these three types of bonding is very strong. Both ionic and metallic bonding rely on electrostatic forces of attraction between oppositely charged particles. In...
AA
Answered by Alia A. • Chemistry tutor
15165 Views

What is an easy way to remember the effects of the exchange rate on imports and exports?

These two simple acronyms will help you remember the effects of changes in the exchange rate on imports and exports: Strong Pound Imports Cheap Exports Dear The acronym "SPICED" is a helpful way to...
JC
Answered by Jake C. • Economics tutor
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What are the key differences between plant and animal cells?

There are several important differences between plant and animal cells that will be key to remember in the exam. Namely: - Plant cells have a rigid cell wall whereas animal cells have a cell membrane - Plant...
JC
Answered by Jake C. • Biology tutor
8178 Views

Surd Calculations?

Surds are numbers left in 'square root form' (or 'cube root form' etc). They are therefore irrational numbers. Surds are the root of numbers and not whole numbers. Multiplication Example: √2 × √6 = √12 (= 2×...
NB
Answered by Nita B. • Maths tutor
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Can you solve the following 2 simultaneous equations; y=6x-2 and x^2-4x+19=y?

y=6x-2 x 2 -4x+19 Both equations are equal to Y, hence can be substituted into each other; 6x-2= x^2-4x+19 Now we only have X terms in our equations Bring all the like X terms together, and make equation equ...
MC
Answered by Mohammed C. • Maths tutor
7457 Views