Im bored who wanna talk on google docs or sum

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains