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The DNA from PCR is placed into wells of agarose gel and a buffer solution is poured over it. An electrical current is passed through the gel due to the conduction of the buffer solution. The DNA fragments m...

The dissociation of the weak acid ‘HA’ would be shown as:HA (aq) ⇌ H + (aq) + A – (aq)Adding alkali will add OH - ions to the solution. These will react with the H + ions present in the solution, producing w...

1- What is the subjunctive? It is a mood (not a tense!) which expresses uncertain ideas. 2- So when do I use it? Set phrases with 'que' Negative phrases with 'que' which express emotion or doubt or other unc...

A pendulum bob will move fastest when the mass is at its lowest point (when x=0). The reason for this is that in the pendulum system energy is transferred between kinetic and gravitational potential energy, ...

The centripetal force can be thought of as the force that causes circular motion. When an object moves in a circle a force must always act on it, even when it moves at a constant speed. This is because veloc...