Classical Period, musical features

Which of the following periods of classical music came first?

Which family of instruments can you hear in this extract?

The harpsichord was used alot in the Classical Period

This musical genre began to be used in the Classical period

The instrument used in this extract is a piano

Which of these composers are from the Classical Period?

What types of music did Mozart compose?

Which family of instruments began to be used more in Classical Symphonies?

Which of these features was common in music from the Classical Period?

How many pieces of music did Mozart write in total?