Was Mozambique renamed after gaining independence

Yes, Mozambique was renamed after gaining independence from Portugal in 1975. It was previously known as Portuguese East Africa.

Which colonizer gave independence to Mozambique and who was the prime Minister/president of the colonizer at that time?

Mozambique gained independence from Portugal in 1975. The Prime Minister of Portugal at that time was Vasco Gonçalves.

Who was the Nationalist leader and what was the political party called?

The nationalist leader of Mozambique during its struggle for independence was Samora Machel. He was the founding member of the political party called the Mozambique Liberation Front (FRELIMO).

Who was the first PM/president of Mozambique and what methods were used to gain independence: arm-resustance, negotiations, external pressure or colonial power wish to leave?

After gaining independence in 1975, Samora Machel became the first President of Mozambique. The Mozambique Liberation Front (FRELIMO) primarily used armed resistance in their struggle for independence against Portuguese colonial rule. The armed struggle lasted over 10 years before Mozambique finally gained independence.

When did Mozambique gain full independence

Mozambique gained full independence from Portugal on June 25, 1975.