Ch.3 - Chemical ReactionsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: The most common charge associated with scandium in its compounds is 3+. Indicate the chemical formula you would expect for compounds formed between scandium and iodine.

Solution: The most common charge associated with scandium in its compounds is 3+. Indicate the chemical formula you would expect for compounds formed between scandium and iodine.

Problem

The most common charge associated with scandium in its compounds is 3+. Indicate the chemical formula you would expect for compounds formed between scandium and iodine.

Solution

Ionic compounds are made up of cations and anions. The formula for an ionic compound is written is a way that the number of positive charges should equal the number of negative charges.


To write the formula for the compound composed of scandium and iodine. We need the charge that iodine acquired when it reacts with a metal.


Iodine is a halogen and it belongs to group 7A. It reacts with metals to gain 1 electron to form I- anion.


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