: A catalyst is a substance that takes part in a reaction without being consumed. In what ways is the carbon in the first step in the CNO cycle similar to a catalyst?

Iwll give extra points to who gets this for ! what type of reaction is this? ?

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

Compare and contrast refraction of light and sound will give brainliest