Title: Chapter 18: Representative Metals, Metalloids, and Nonmetals
Course: Test

Q: What is one of the primary components in our atmosphere that leads to acidic rain?
- SO
- SO_2
- both SO and SO_2
A: SO_2

Q: Which of the following gases are flammable?
- helium
- hydrogen
- nitrogen
A: hydrogen

Q: Which of the following gases are considered inert?
- oxygen
- hydrogen
- nitrogen
A: nitrogen

Q: Which one of the following elements does not exist as a diatomic molecule in nature?
- hydrogen
- nitrogen
- neon
A: neon

Q: Which diatomic element is considered an inert gas?
- H_2
- N_2
- F_2
A: N_2

Q: What is the active ingredient in most solid antacids?
- CaCO_3
- Ca(OH)_2
- KOH
A: CaCO_3

Q: Which of the following are considered toxic heavy metals?
- lead, cadmium, and mercury
- lead, iron, and mercury
- arsenic, mercury, and calcium
A: lead, cadmium, and mercury

Q: What compound does magnesium and nitrogen form?
- Mg_3N_2
- Mg_2N_3
- MgN
A: Mg_3N_2