A compound contains 65.2% carbon, 13.1% hydrogen and 34.7% oxygen. If its molar mass is 208.0 g/mol what is its molecular formula?

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

What effect might melting sea ice have for people who live in coastal areas?

Consider the story you just read. all but one of the choices below indicate that something is living.