Which of the following indicates a catalyst is used to alter a chemical equation? (3 points)
A.
chemical formula written over an →
B.
↓↑
C.
Δ written under an →
D.
chemical formula written under an →

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

Why did southern business leaders want to increase the number of slaves

How can one make a supersaturated solution? (apex)