What was the copernican revolution?

The Nicolaus Copernicus is the revolutionary mathematician and the astronomer who changed the era by his model of the solar system called the heliocentric model.

Before his time people were living in the time where the geocentric model of the solar system by Ptolemy which stated that earth is the centre of the universe.

But the Copernican heliocentric model proposed that Sun is present at the centre of the universe instead of Earth. This model was not accepted at that time but after experiments of Kepler, the model changed the scientific world.

your answers are a,b,,e and f

i hope this

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.