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Balance the following equation: __C8H18 + __ O2 --> __CO2 + __H2O

Balancing the equation means there must be an equal number of each element on both sides of the equation. In this case, we start with 8 carbon atoms on the left and just 1 on the right, so we can put 8 molec...
MS
Answered by Michael S. • Chemistry tutor
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Describe and evaluate the independent groups design when designing a research study (6).

The independent groups design is an experimental design whereby two groups are exposed to different experimental conditions. Usually half of the participants are assigned to the experimental group where they...
AS
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Work out the value of 2^14 ÷ (2^9)^2

2 14 ÷ (2 9 ) 2 = 2 14 ÷ 2 18 = 2 -4 = 1/(2 4 ) = 1/16 (9x2=18) (14-18=-4) (2 4 =2x2x2x2=16)
HG
Answered by Hannah G. • Maths tutor
8896 Views

Sketch the graph of y = 5 - 7x

The key points with graph sketching are to think about the shape of the curve, any turning points, and the intercepts with the y- and x- axes. This curve is linear in x, and is therefore a straight line (obv...
JA
Answered by Jonah A. • Maths tutor
3977 Views

How are arteries adapted to carry blood away from the heart?

Since arteries need to pump blood to the entire body under high pressure, they are very strong with thick muscular walls. Artery walls are also elastic, which allows them to stretch and spring back in order ...
MC
Answered by Maxwell C. • Biology tutor
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