Which piece of information could a person obtain from a contour map? 1.
the mineral composition of a mountain
2.
the elevation of a mountain
3.
the speed of water flow in a river
4.
the amount of water in a river

What is the theoretical yield of carbon dioxide? a)0.993 gb)2.98 gc)3.65 gd)8.93 g

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

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