How many moles of O2 to produce 1.00 mole of CO2?(using dimensional analysis) use the given reaction - 2 CO + O2 —> 2 CO2

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

During which time interval does the object travel approximately 10 meters

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