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Explain what is meant by dynamic equilibrium. (2)

The forward reaction and the backward reaction occur at the same time (1) and at the same rate (1).
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Answered by Nancy M. Chemistry tutor
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Draw a distance-time, speed-time, and acceleration-time graph for an object moving at a constant velocity of 5m/s for 10 seconds.

We know that the object is moving at 5m/s already telling us that the distance the object has travelled increases with time. Plotting distance on the y axis against time on the x axis we therefore expect a s...
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Answered by Hunain N. Physics tutor
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Find the integral of 4x^2 - 10x + 1/(x^(1/2)), with respect to x, in its simplest form.

= (4/3)x 3 - (10/2)x 2 + x 1/2 /(1/2) + C = (4/3)x 3 - 5x 2 + 2x 1/2 + C
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Answered by Aisha A. Maths tutor
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Draw a dot and cross diagram of a Chlorine molecule showing the outer electrons only.

Chlorine has seven outer electrons. Electrons like to be in pairs. In one Chlorine atom, there are three pairs and one lonely electron which doesn't have a pair. (draw). So two Chlorine atoms form a Chlorine...
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Answered by Lisa M. Chemistry tutor
18534 Views

What is the past historic and when would I use it?

The past historic or le passé simple is another past tense in French. However, nowadays it is never heard in spoken French and you will only see it in literary texts. In literary texts, it is used to replace...
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Answered by Isla P. French tutor
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