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Crude oil has to be separated into fractions to be useful. How is this done?

Crude oil has lots of molecules with different numbers of carbon atoms in them. A fractional distillation column is used to separate the molecules. It is hottest at the bottom and coolest at the top. Bitu...

TD
4235 Views

State 4 different terms for describing musical texture and define them:

Possible answers:

Homophonic: A homophonic texture means that the various lines of music (perhaps played by different instruments or voices), are all moving together, so the texture is chordal, and...

BB
Answered by Becky B. Music tutor
5962 Views

Why does the reactivity of group 1 elements increase as you go down the group?

Group 1 metals all have one electron in their outer shell. When they react they form positive metal ions by losing this electron. Since there is only one electron to lose, group 1 metals are all extrememe...

PH
27861 Views

How and why does an increase in temperature effect the rate of an enzyme substrate reaction?

As temperature increases up to the optimal temperature for the enzyme, the rate of reaction will increase at a steady rate because the kinetic energy of the enzyme and substrate molecules increases, so th...

ES
Answered by Edward S. Biology tutor
3143 Views

If Tom flips a coin 3 times, what is the probability the result are heads, heads, heads, or tails,heads, tails? (assuming we have a fair coin)

This question can be solved using a tree diagram. First we need to map out the two possible outcomes from the question:

H=heads T= tails. The first scenario is HHH, as the probability of H each tim...

RB
Answered by Ross B. Maths tutor
4584 Views

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