When the following equation is balanced, the coefficient of Al2O3 ...

[Chloeellawright]

When the following equation is balanced, the coefficient of Al2O3 is ________. Al2O3 (s) + C (s) + Cl2 (g)  AlCl3 (s) + CO (g)
 
  A) 1
  B) 2
  C) 3
  D) 4
  E) 5

Question 2

There are ________ protons, ________ neutrons, and ________ electrons in U+5.
 
  A) 146, 92, 92
  B) 92, 146, 87
  C) 92, 146, 92
  D) 92, 92, 87
  E) 146, 92, 146

Question 3

Which of the following provides the best definition of a drug? It is a chemical substance that
 
  A) is a pain-reliever.
  B) can be used to treat an illness.
  C) can be used to improve one's state of health or well-being.
  D) affects the functioning of living things.

[Leostella20]

Answer to Question 1

A

Answer to Question 2

B

Answer to Question 3

D

[Chloeellawright]

Gracias!

[marict]

Wow, this really help