Here is the image please answer the question before i fail
:( :( :( :( :( :( :( :(

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

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

In general metals get as you move from left to right across the periodic table.