Geology-Final Exam Test-Study Guide

What is the atomic number of this atom?

• 3

• 4

• 5

• 6

How many valence electrons does this have?

• 1

• 2

• 3

• 4

Which element does this atom represent?(Refer to the periodic table)

• Helium

• Beryllium

• Lithium

• Nitrogen

What ionic compound is formed by the ions Al^3+ and O^-2

• Al3O2

• Al2O

• Al2O3

• AlO

The figure shows the arrangement of atoms in a substance. What is the substance?

• Gass

• Liquid

• Glass

• Solid

Which is an example of a heterogeneous mixture? 

• Coffee

• Soil

• Gelatin

• Air

What is ice converted into during sublimation?

• Hydrogen ions and hydroxide ions

• Hydrogen

• Water

• Water Vapor

Many musical instruments are made up of brass, which is a mixture of a mixture of copper and zinc atoms. What is brass an example of?

• Solid solution

• Ionic compound

• Chemical reaction

• Base

What happens to a gas when it condenses and forms a liquid?

• 1. It releases thermal energy.

• 1. It absorbs thermal energy.

• 1. It increases in temperature

• 1. It decreases in temperature.

What kind of ion is presented in an acid?

• 1. Oxygen ion

• 1. Negative Ion

• 1. Hydroxide ion

• 1. Hydrogen ion