Which of the following is true about limiting reagent? Select two correct statements.

A chemistry student determined the empirical formula of a compound with molar mass of 92.02 g/mol. After mole conversion steps from % mass composition, she got an empirical formula of NO2. What is the actual formula (molecular formula) of this compound?Enter the molecular formula of the compound in the text box provided. Do not worry about the subscripts. For example, H2O can be entered as H2O. You must show your work to receive credit.

Consider the combustion of hydrogen gas in the presence of oxygen gas represented by the following balanced chemical equation:2 H2(g) + O2(s) → 2 H2O(g)How many moles of O2 are needed to completely react with hydrogen gas and produce g H2O?_______________ mol O2. Do NOT enter unit.

Where is Hadar located? Why is Hadar so significant? 

Lineages: Episode 7 Questions

For each species, indicate what type of movement each limb is responsible for: 

Most of the coal that we burn today was formed from the great coal forming swamps and forests in the ________ period which was ________ million years ago.  

Culture: Episode 11 Questions

Anatomy: Episode 5 Questions

What do they hypothesize was the reason that Neanderthals went extinct?