Which is the highest sublimation point for phosphorus tribromide and water or carbon dioxide?

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

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