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Why are Alkali metals so reactive?

Alkali metals are in group 1, so they have only one electron in their outermost shell. They are trying to loose this electron so they can obtain a noble gas configuration. This means that they will react vio...
AP
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Why can light travel through space but sound cannot?

Light is a transverse wave whose oscillations are perpendicular to its direction of movement. It is on the electromagnetic spectrum, so it does not need particles to propagate through. It can propagate throu...
AP
Answered by Adeoluwa P. • Physics tutor
15610 Views

Explain some of the key uses and significance of symbolism within the Church

Symbols instantly convey a message or meaning to those who are familiar with them. Symbols are used a lot in the Christian faith and can be seen on altars and in different places around the church and in Chr...
ZW
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What was the role of the basso continuo in Baroque music?

The use of basso continuo, or figured bass, is prominent in this era. The harpsichord, cellos, basses and bassoons (if present) would read off the same line of music. There would be numbers written beneath t...
AP
Answered by Adeoluwa P. • Music tutor
6510 Views

Explain the formation of a waterfall (Physical Geography)

Waterfalls tend to form where a river bed has a layer of hard rock on top of softer rock. When this occurs the process outlined below may happen 1. Water falls. The softer rock is eroded more quickly than ha...
JJ
Answered by Jenny J. • Geography tutor
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