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When you are given a table of half cells with values for electrode potentials, how do you find the strongest oxidising and reducing agent?

Possibly the easiest way to do this is by thinking about what the value of Electrode Potential means. The more positive the Electrode Potential, the greater the tendency of the species in the equation to be ...
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Answered by James S. • Chemistry tutor
9689 Views

Why are values for gravitational potential always negative?

This is all down to how gravitational potential is defined. The gravitational potential at a point is defined as the work done per unit mass to move a mass from infinity to the point in the gravitational fie...
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Answered by James S. • Physics tutor
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Sam needs to make a drink from orange cordial and lemonade in the ratio 1:9. How much orange cordial does he need to make 1500ml?

1 portion of orange cordial is mixed with 9 portions of lemonade There are 10 portions in total one-tenth of the total volume would be the volume of orange cordial needed (1/10) * 1500 = 150 Therefore 150ml ...
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Answered by Oluwatobi O. • Maths tutor
3713 Views

What is the sliding filament theory of muscle contraction?

There are two main muscle filaments in muscle fibres: Actin and myosin filaments . Actin filaments are thin and have binding sites for the globular heads of myosin filaments. Myosin filaments are thick and f...
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Answered by Kasia F. • Biology tutor
28218 Views

Circut is arranged in a loop, with resistor (5 ohm), power source(2V), resistor (3 ohm), and another power source (3V) connected subsequently. What is the voltage on 5ohm resistor?

The questions is constructed to show, that the order of devices do not affect the currents or voltages. 5ohm / ( 3 + 5)ohm = x/ 2V +5V x = 35/8 V = 4 3/8V
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Answered by Anna W. • Physics tutor
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