Chemical Names and Formulas
pH
Ionic Bonds
Organization of the Periodic Table + Trends
Electron Configurations
100
The one important rule when writing the chemical formula for polyatomic ions.
What is to write the cation followed by the anion?
100
When discussing [H+] concentration, hydrogen ions also go by the chemical name ____.
What are hydronium ions?
100
True or False? Although ionic compounds are composed of both anions and cations, ionic compounds are electrically negative.
What is false? Ionic compounds are electrically neutral.
100
True or False? Chemists began organizing the elements of the periodic table by their chemical properties.
What is true?
100
The maximum number of electrons present in the 4th principal energy level.
What is 32?
200
Write the formula for the two following acids; Hydroiodic acid and iron(III) oxide.
What is HI and Fe₂O₃?
200
pH and [H+] concentration vary _____.
What is inversely?
200
The lowest whole-number ratio of ions in an ionic compound.
What are formula units?
200
True or False? Mendeleev arranged the elements in order of increasing atomic number.
What is false? He arranged the elements in order of increasing atomic mass.
200
The diagram that helps to determine an element's electron structure?
What is orbital diagram?
300
When naming an acid, an anion with the suffix "-ide" means that the acid with begin with ____ and end with ____.
What is the acid begins with "hydro-" and ends with "-ic"?
300
The unit used when describing [H+] concentration.
What is molarity (moles per liter)?
300
An ionic bond is formed when _____.
What is when a metallic element reacts with a nonmetallic element?
300
_____ was a German chemist, who is known for publishing a classification system for the elements in 1829. In this system, the elements were grouped into triads.
What is J. W. Dobereiner?
300
Write the Lewis dot structure for BeF₂.
400
State the names of the following molecular and/or ionic compounds; HC₂H₃O₂ and Al(OH)₃.
What is ethanoic acid and aluminum hydroxide?
400
pH can also be defined by the equation _______.
-log[H+]
400
True or False? Based on the properties of ionic compounds, sodium chloride is most likely to be found underground border lining a solid and aqueous state.
What is false? At room temperature, ionic compounds are crystalline solids.
400
The trend for electronegativity on the periodic table.
What is increases from left to right and from bottom to top?
400
The principle used for filling of atomic orbitals.
What is Aufbau principle?
500
Circuit boards that are used in computers have circuits that hold wires for carrying signals. These circuits are often created using a mixture that contains _______ acid.
What is sulfuric acid?
500
Name the pH of a substance from the following equation and determine whether it is an acid or a base: -(log1010-9)
What is a pH of 9 and a base?
500
Which of the following is not an ionic compound:
- CaCl2
- HCl
- NaCl
- CCl4
What is CCl4?
500
True or False? On moving from left to right in a periodic table, the size of an atom decreases and increases from top to bottom.
What is true?
500
The electron configuration of Ti2+.
1s22s22p63s23p63d2