Answer:
CH is pronounced like the English CH in chicken. An example is COCHE (pronounced KOCHAY). V may be pronounced like B in butter but this is not compulsory. An example is CERVEZA (pronounced THERBAYTHA or THERVAYTHA). C (before E or I) and Z are pronounced TH. An example is CERVEZA (pronounced THERVAYTHA).
I is pronounced EE, like EE in meet. An example is LAPIZ (pronounced LUPP EETH). E between letters (possibly mainly at the end of words) is pronounced slightly like AY in day. An example is LAPICES (pronounced LUPP EETH AYCE).
H is silent at the beginning of a word.