Ionic compounds-names and formulas

How do you identify the anion in an ionic compound?

• The anion is typically a metal with a positive charge.

• The anion is usually a nonmetal or polyatomic ion with a negative charge.

• The anion is always a noble gas that does not form compounds.

• The anion is the element that loses electrons in the reaction.

What is an ionic compound?

• A compound formed by covalent bonds between nonmetals.

• A chemical compound composed of ions held together by ionic bonding.

• A mixture of metals and nonmetals without any bonding.

• A compound that only contains metals.

Tags

NGSS.HS-PS1-3

How do you name ionic compounds containing transition metals?

• By stating the metal's name followed by its oxidation state in Roman numerals in parentheses, and then the name of the nonmetal with its ending changed to '-ide'.

• By using the common name of the metal followed by the name of the nonmetal without any changes.

• By naming the metal first, followed by the name of the nonmetal and the oxidation state in Arabic numerals.

• By stating the metal's name followed by its oxidation state in Roman numerals in parentheses, and then the name of the polyatomic ion.

What is the significance of Roman numerals in naming ionic compounds?

• They represent the number of atoms in the compound.

• They indicate the oxidation state of the metal ion in the compound.

• They are used to denote the type of ionic bond present.

• They specify the temperature at which the compound forms.

What is the formula for potassium phosphate?

• K2PO4

• K3PO4

• K4PO4

• KPO4

How do you determine the charge of a metal ion in an ionic compound?

• By knowing the total charge of the compound and the charges of the nonmetals or polyatomic ions present.

• By the position of the metal in the periodic table only.

• By the color of the metal ion in solution.

• By the size of the metal ion compared to nonmetals.

What is the formula for calcium carbide?

• CaC2

• Ca2C

• CaC

• Ca3C2

What is the name of the compound with the formula Cr(NO3)3?

• chromium (III) nitrate

• chromium (II) nitrate

• chromium nitrate

• chromium (IV) nitrate

What is the naming convention for ionic compounds with polyatomic ions?

• The name of the cation is followed by the name of the polyatomic ion without changing its ending.

• The name of the polyatomic ion is placed before the cation.

• The cation name is changed to end with '-ate'.

• The polyatomic ion is named first, followed by the cation with an '-ide' ending.

What is the name of Cr(NO2)3?

• chromium (III) nitrite

• chromium (II) nitrite

• chromium (IV) nitrite

• chromium nitride