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Quali sono i pericoli di chattare su internet?

Internet è un mezzo di comunicazione potente, non solo ci permette di rimanere in contatto con le persone a noi più care come amici, partner e famigliari ma ci consente di fare nuove conoscenze. Ad oggi l...

FC
Answered by Francesca C. Italian tutor
2060 Views

How does a heterogenous catalyst work? (3 marks)

Reactants are adsorbed onto the surface of the catalyst (1). Bonds forms between the atoms and molecules on the surface (2), and the products desorb (3).

YP
Answered by Yva P. Chemistry tutor
2243 Views

Describe how mutations in tumour suppressor genes can lead to the development of tumours

Tumour suppressor genes (TSGs) are genes whose protein products restrain inappropriate cell growth and division. A mutation results in a changed amino acid sequence, which alters the tertiary structure of...

YP
Answered by Yva P. Biology tutor
4544 Views

In the triangle ABC, AB = 16 cm, AC = 13 cm, angle ABC = 50 and angle BCA= x Find the two possible values for x, giving your answers to one decimal place.

Using the sine rule: sina/A = sinb/Bsinx/16 = sin50/13sinx = 16 * (sin50/13)sinx = 0.943x = 70.5 and 109.5

YP
Answered by Yva P. Maths tutor
14459 Views

How can a volcanic eruption be predicted?

Constant monitoring of a volcano is crucial in being able to predict an upcoming eruption. Various technologies are used by volcanic monitoring stations, such as the Hawaiian Volcano Observatory, to detec...

LP
Answered by Lydia P. Geography tutor
4897 Views

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