The Answer Key – Easy Hard Science

Back to: 7 Need-To-Know Chemical Names and Formulas

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Answer Key

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Getting Started
- Print the Materials
- The Answer Key
- Staying Connected
First Page of the Worksheet
- Metals and Nonmetals
- Charge and the (main) 8 Columns
- Vocabulary Words on Page One
Exercise 1: Cations & Anions
- Anions (negative charge)
- Cations (positive charge)
Exercise 2: Simple Ionic Compounds
- Charge from the Periodic Table
- Example for NaCl (sodium chloride)
- Row 1
- Row 2, Formulas
- Row 2, Names
- Row 3
- Row 4
Exercise 3: Roman Numerals
- Some Names Have a Roman Numeral
- The Roman Numeral Gives Charge
- Formulas from Names with Romans
Exercise 4: To Roman or Not To Roman
- Transition Metals Except Zinc and Silver
- Categorizing as Roman or No Roman
- Names with No Roman Numeral
- Names with Roman Numeral
Exercise 5: Polyatomic Ions
- Table of Polyatomics
- Oops There is a Typo in the Next Video!
- Formulas in Column 1
- Formulas in Column 2
- Formulas in Column 3
- Formulas in Column 4
- Formulas in Column 5
- Formulas in Column 6
- Names in Column 1 (don’t forget the Romans)
- Names in All Columns
Exercise 6: More Polyatomics
- -ates, -ites, -ides and bi-
- Formulas
Exercise 7: Self Quiz for Name to Formula
- Mastering Ions
- Cations with Roman Numerals
- Cations without Roman Numerals
- Cations Silver, Zinc & Ammonium
- Anions
- Formulas from Names
Exercise 8: Self Quiz for Formula to Name
- Roman or No Roman
- Names without Roman Numerals
- Checking Charges for Names without Roman Numerals
- Names with Roman Numerals
7 Must-Know Polyatomics
- 7 Must-Know Polyatomics
Finishing Up
- Certificate of Completion
- Stay Connected
- Be Immersed in Chemistry
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