Ionic bonding (practice)
The formula for the ammonium ion: NH3 NH4^+ Am^+
NH4^+
Which statements describe lattice energy? It is the energy the ions absorb when they form a crystalline compound. It increases as the size of the ions decreases. It increases as the charge on the ions increases. It explains why ions form molecules. It is a measure of the strength of the bonds between ions in a compound.
It increases as the size of the ions decrease It increases as the charge on the ions increases It is a measure of the strength of the bonds between ions in a compound
A formula unit represents the simplest ratio of elements in a ____ of an ionic compound. crystal molecule
crystal
he polyatomic ion with the formula CN- is called The polyatomic ion with the formula HPO42- is called
cyanide hydrogen phosphate
he formula for ammonium carbonate: NH4HCO3 NH4CO3 (NH4)2CO3 The formula for sodium phosphate: NaPO4 Na(PO4)3 Na3PO4
(NH4)2CO3 Na3PO4
There are two magnesium ions for every two sulfide ions in magnesium sulfide. The ratio of Mg to S in the formula unit is
1:1
A chromate ion consists of four oxygen atoms bonded to a chromium atom. It has two extra electrons. The formula of this ion: Cr4O2^- CrO4^2+ CrO4^2-
CrO4^2-
The formula for the compound ammonium chloride: NH4Cl+ NH4Cl NH3Cl NH4Cl2
NH4Cl
he formula for the nitrate ion: NO3^- NO2^- NO3^+
NO3^-
The melting point of an ionic compound is likely to be Ionic compounds can conduct electricity in Ionic compounds tend to be Ionic compounds
higher than solution and the liquid state hard have varying solubility in water
How and why do ionic bonds form? Check all of the boxes that apply. Ionic bonds form between metal atoms and other metal atoms. Ionic bonds form between metal atoms and nonmetal atoms. The more electronegative atoms transfer one or more electrons to the less electronegative atom. The less electronegative atoms transfers one or more electrons to the more electronegative atom. The metal atom forms a cation and the nonmetal atom forms an anion. The attraction between ions with the same charge forms an ionic bond. The attraction between ions with an opposite charge forms an ionic bond.
Ionic bonds form between metal and non metal atoms The less electronegative atoms transfers one or more electrons to the more electronegative atom. The metal atom forms a cation and the nonmetal atoms forms an anion. The attraction between ions with an opposite charge forms an ionic bond.
A crystal is made up of the number of atoms given in a formula unit. many molecules that are represented by the formula unit. many atoms that are arranged in a regular pattern.
many atoms that are arranged in a regular pattern