if 5.6L of CH4 are reacted to form CO2 at STP, how many liters of oxygen will be required to completely form consume all of the CH4

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

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5