HELP ASAP PLEASE I GIVE BRAINLIEST SHOW ALL WORK

The excretory system, need answers for all: )

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium

Write a balanced equation showing the formation of copper (ii) nitrite from its elements