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How would one multiply out brackets?

If asked to multiply out a set of brackets, one must remember to multiply each term in a set of brackets by every term in the other set of brackets. For example, (x+2)(x-4) = x 2 +2x-4x-8 = x 2 -2x+8. An inc...
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Answered by Alden R. • Maths tutor
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Describe and explain the electrical conductivity of lithium oxide, Li2O, and lithium in their solid and molten states.

Lithium conducts electricity in its solid and molten states. Lithium exhibits metallic bonding and as such its valence electrons are delocalised in the liquid and solid state allowing electricty to be conduc...
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Answered by Charlie F. • Chemistry tutor
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find the inverse function of the following: f(x) = 3x-5

in an inverse function, simply put the x and y are inversed: meaning x becomes y, and y becomes x f(x): y=3x-5 f-1(x): x=3y-5 <=> x+5=3y <=> (x+5)/3 = y <=> (1/3)x + (5/3) = y answer
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Answered by Olivia T. • Maths tutor
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What was the significance of Meselson-Stahls experiment? Which form(s) of replication did it disprove and which one(s) did it provide evidence for?

Meselson-stahl's experiment provided evidence for the semi-conservative DNA replication hypothesis, given that 1st and 2nd bacteria cultures showed ratios of N14 and N15 in their DNA that followed that speci...
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Answered by Olivia T. • Biology tutor
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For the formation of phenylethanone from benzene: Name and explain the mechanism, write an overall equation and write an equation for the formation of the electrophile.

Overall equation: C 6 H 6 + CH 3 COCl ---> C 6 H 5 COCH 3 + HCl Equation for formation of the electrophile: CH 3 COCl + AlCl 3 ---> [CH 3 CO] + + [AlCl 4 ] - Name of mechanism: Electrophilic substituti...
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Answered by William F. • Chemistry tutor
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