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Find the curve whose gradient is given by dy/dx=xy and which passes through the point (0,3)

First "Separate the Variables" by rearranging the equation to get the ys on the LHS and the xs on the RHS: (1/y) dy=x dx Now Integrate: Integral(1/y) dy = Integral(x) dx ln(y)=x 2 /2 + constant of ...
CC
Answered by Christian C. • Maths tutor
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State and explain the general trend in first ionisation energy across Period 3

As you go across period 3 there is a general increase in the trend of the first ionisation energy. This is because the atoms have a greater charge on the nucleus (this means they have more protons). However,...
HB
Answered by Helen B. • Chemistry tutor
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Here are some fractions: 3/10, 2/8, 4/12, 12/40, 5/20. Which of these fractions are equivalent to 1/4?

Before we begin lets quickly do some reviewing. What are fractions and how can we write them? Fractions are often used when we don't want to write down numbers that are really long. A fraction , simply put i...
ML
Answered by Michael L. • Maths tutor
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¿Qué haces en tu tiempo libre?

Hago mucho en mi tiempo libre porque me gustar estar ocupada. Normalmente estudio en la bibioteca, pero a veces salgo con mis amigos. Solemos ir al cine para ver la última película o vamos a un restaurante y...
EJ
Answered by Elizabeth J. • Spanish tutor
7673 Views

Draw [Cu(H2O)6]2+ and explain why is it blue in colour.

[Cu(H2O)6]2+ is and octahedral shaped complex which I shall draw on the whiteboard. It is blue for thw following reasons: When the water ligands bond to the Cu2+ ion, it causes the d orbitals to split into 2...
AJ
Answered by Amaya J. • Chemistry tutor
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