Number of moles = mass / molecular mass
Molecular mass of Mg = 24.3 g/mol
n = 5g / 24.3 g/mol
= 0.206 moles
They have different mass numbers, because they have different numbers of neutrons, and neutrons have a mass of 1, meaning changing the number of them will result in a change in the mass of the element
Answer:
Heat transfer is related to temperature change.
Explanation:
Answer:
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Explanation:
A is the answers for the question
The properties of aluminium include low density<span> and therefore <u><em>low </em></u></span><u><em>weight</em></u>, <u><em>high strength</em></u>, <u><em>superior malleability</em></u>, <u><em>easy machining</em></u>, <u><em>excellent corrosion resistance</em></u> and <u><em>good thermal and electrical conductivity</em></u><span> are amongst aluminium's most important properties. <u><em>Aluminium is also very easy to recycle.</em></u>
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