What volume (in L) of ethane (C2H6) will be required to produce 42.5 L of carbon dioxide in the reaction below? 2C2H6(g)+7O2(g)->4CO2(g)+6H2O(g)

How is the composition of a meteorite relevant to finding out the composition of earth's core?

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

11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these