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Define the term 'Bronsted-Lowry acid'

A proton ( H+ ion) donor
Answered by • Chemistry tutor
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Prove that 0.5757... (recurring) = 19/33. Hence, write 0.3575757... (recurring) as a fraction in its lowest terms.

Two parts to the question. Let's focus on part one:Let x = 0.575757... (1)This means that 100x = 57.575757... (2)If you subtract (1) from (2), we get: 99x = 57Divide both sides by 99: x = 57/99Simplify: x = ...
OV
Answered by Oliver V. • Maths tutor
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Find the positive solution to b^2 +5b – 6 =o

(b-1)(b+6)=0 b= 1 and -6 Positive Solution = 1
Answered by • Maths tutor
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What is Darwin’s theory of Evolution by Natural Selection? What is the evidence?

It describes the differential survival and reproduction of different organisms with varying phenotypes. These differences are at least partially heritable, thus over time, gradual changes accumulate in a lin...
NS
Answered by Nicole S. • Biology tutor
3429 Views

Define the moment of a couple

The moment of a couple is the force times the perpendicular distance between the lines of action of the force.
HW
Answered by Heather W. • Physics tutor
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