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Balance the equation C4H8 + O2 ->CO2 + H2O

C 4 H 8 + O 2 -> CO 2 + H 2 O Want to deal with only one element at the time, recap that you can only add coefficients to the front of chemical formulae, you cannot change the little numbers (number of at...
CD
Answered by Claire D. • Chemistry tutor
23949 Views

Solve x^2 - x - 12

As it is a quadratic, I can use the quadratic equation, or (-b +/- sqrt(b 2 -4ac))/2aHere our a = 1, b = -1 and c = -12. Substitute into the quadratic equation, this becomes (1 +/- sqrt(1 + (4*12))/2 and the...
FW
Answered by Freya W. • Maths tutor
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What is the difference between the id, the superego and the ego?

These are part of Freud's theory of the human psyche. The part of the unconscious mind. The id is concerned with instinctual impulses. Meaning it wants to satisfy basic needs, such as sex (libido) and aggres...
NS
Answered by Noorya S. • Psychology tutor
21882 Views

Evaluate the use of JIT manufacturing.

Just in time manufacturing is a workflow method that aim is to make production lines more efficient. JIT production makes the exact amount of products at the time the customer needs them. The advantages of t...
CB
3230 Views

"Starting with this speech, explain how far you think Shakespeare presents Lady Macbeth as a powerful woman."

This is a close-reading question from the 2014 AQA paper on 'Shakespeare and the 19th Century novel'. The actual question is for 30 marks in an exam, so this is a shortened version of what one might write. T...
SL
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