So am gonna need a bit of help

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate

Which description best characterizes the motion of particles in a solid?

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas