Energy: Application & Uses IV Lowersixth Science Chemistry

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Energetics and related concepts for ionic compounds

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Energy: Application & Uses IV Lowersixth Science Chemistry


Froggy Jumps Energy: Application & Uses IV Lowersixth Science ChemistryVersion en ligne Energetics and related concepts for ionic compounds par YAKILI LMS 1 What is formed when ions combine to form a compound, releasing energy? a Lattice energy b Ionization energy c Hydration energy 2 Born-Haber cycle helps calculate the lattice energy using a formation steps of an ionic solid b solvation steps c equilibrium constants 3 Lattice energy is the energy required to a assemble gaseous ions into a solid b dissolve a solid c break covalent bonds 4 Endothermic lattice formation means a energy is absorbed to form the lattice b no energy change c energy is released 5 Solvation is the process of a surrounding ions by solvent molecules b creating gas pressure c forming a lattice 6 Which energy term is associated with dissolving an ionic solid in water? a Electron affinity b Hydration energy c Bond dissociation energy 7 Hydration energy is typically a neutral b endothermic c exothermic 8 In the Born-Haber cycle, which step contributes to lattice energy? a Gas ionization b Electron affinity c Formation of gaseous ions into solid 9 Which variable influences lattice energy the most? a Ion charges and ionic radii b Gas pressure only c Temperature only 10 Theoretical lattice energies are predicted using a Dalton’s law b Ideal gas law c Born-Lande equation 11 A high lattice energy indicates a weak bond b high liquid stability c strong ionic bond and brittle solid 12 Which factor reduces lattice energy? a Larger ionic radii b Lower temperature c Higher ion charge 13 Stoichiometry energy considerations mainly involve a pressure only b moles and energy per mole c volume and color 14 What does a solvation energy measure? a Gas expansion b Stabilization of ions in solvent c Crystallization rate 15 Solvation is most significant for a ionic compounds in polar solvents b nonpolar solvents c pure metals 16 Energy sources for chemistry include a Only heat b Only light c Chemical, electrical, and light 17 Which is a primary energy source in chemistry labs? a Kinetic energy only b Electrical energy c Potential energy only 18 Ion formation energy refers to a Amount needed to remove electrons b Energy to form bonds c Energy to break lattice 19 What does lattice energy depend on? a Ion charge and distance b Molar mass only c Solvent type only 20 Which ion feature increases lattice energy? a Higher charges on ions b Larger atomic radii only c Lower charges on ions 21 Born-Haber cycle relates to a Formation of an ionic solid from elements b Combustion of hydrocarbons c Equilibrium in solution 22 What is a hydration shell? a Ionic lattice b Solid crystal lattice c Layer of solvent around a solute 23 The energy change during dissolution is called a Gibbs energy b Enthalpy of solution c Entropy change 24 Solvation energy is usually a Exothermic for many salts b Endothermic only c Always zero 25 Which equation relates to lattice energy? a Pressure × volume b Cation charge × anion charge / distance c Molar volume × temperature 26 Energy considerations in stoichiometry help with a Drawing reaction mechanisms b Calculating energy per mole c Colorimetry 27 What is the term for solute interactions with solvent? a Solvation b Electroplating c Precipitation 28 Which energy type drives lattice formation? a Activation energy b Lattice energy release c Hydration energy release 29 A compound with strong lattice energy is typically a Hard and high melting point b Gas at room temp c Soft and low melting point 30 What does solvation stabilize? a Pure solvent only b Neutral atoms c Ions in solution 31 Which is not a common energy source in chemistry? a Chemical energy b Electrical energy c Space energy 32 The Born-Haber cycle uses energy terms from a Element formation to ionic solid b Neutralization only c Hydrolysis only 33 In ionic compounds, lattice energy is a Endothermic to break apart ions b Neutral c Exothermic to form solid 34 Which statement is true? a Solvation lowers free energy in solution b Lattice energy is zero c Solvation wastes energy 35 Theoretical lattice energies are often estimated using a Raoult’s law b Coulomb’s law with Born-Lande c Henry’s law 36 Which factor favors high lattice energy? a Large sizes and low charges b Solvent presence only c Small ion sizes and high charges 37 Solvation energy contributes to a Crystal growth rate b Stability of dissolved ions c Gas pressure 38 Which step is part of the Born-Haber cycle? a Sublimation of elements b Polymerization c Fusion of water 39 Which energy is released when ions form a lattice? a Activation energy b Hydration energy c Lattice energy 40 Which ion property affects solvation? a Charge density b Atomic weight c Color 41 Which is a solvation product? a Ion surrounded by solvent molecules b Ions bonded together c Lattice formed 42 Energy changes in stoichiometry relate to a Viscosity changes only b Reaction energy per mole c Phase changes only 43 Which statement about lattice energy is false? a It decreases with distance b It increases with charge c It increases with larger ion radii 44 What determines hydration energy magnitude? a Ion charge and coordination with water b Temperature alone c Solvent color alone 45 Which term is used for energy required to form ions from atoms? a Electron affinity b Ionization energy c Hydration energy 46 Which process is endothermic in many ionic formations? a Solvation absorption b Lattice formation c Sublimation and ionization 47 Energy per mole of a solid lattice is a Lattice energy per mole b Total mass c Molar volume 48 Solvation stabilizes ions in a Gases b Nonpolar solvents c Polar solvents 49 What is the main use of the Born-Haber cycle? a Predict reaction rate b Predict color c Predict lattice energy 50 Which energy is released when dissolving a salt in water? a Activation energy b Lattice energy c Hydration energy

Energy: Application & Uses IV Lowersixth Science Chemistry

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Energy: Application & Uses IV Lowersixth Science ChemistryVersion en ligne

par YAKILI LMS

What is formed when ions combine to form a compound, releasing energy?

Born-Haber cycle helps calculate the lattice energy using

Lattice energy is the energy required to

Endothermic lattice formation means

Solvation is the process of

Which energy term is associated with dissolving an ionic solid in water?

Hydration energy is typically

In the Born-Haber cycle, which step contributes to lattice energy?

Which variable influences lattice energy the most?

Theoretical lattice energies are predicted using

A high lattice energy indicates

Which factor reduces lattice energy?

Stoichiometry energy considerations mainly involve

What does a solvation energy measure?

Solvation is most significant for

Energy sources for chemistry include

Which is a primary energy source in chemistry labs?

Ion formation energy refers to

What does lattice energy depend on?

Which ion feature increases lattice energy?

Born-Haber cycle relates to

What is a hydration shell?

The energy change during dissolution is called

Solvation energy is usually

Which equation relates to lattice energy?

Energy considerations in stoichiometry help with

What is the term for solute interactions with solvent?

Which energy type drives lattice formation?

A compound with strong lattice energy is typically

What does solvation stabilize?

Which is not a common energy source in chemistry?

The Born-Haber cycle uses energy terms from

In ionic compounds, lattice energy is

Which statement is true?

Theoretical lattice energies are often estimated using

Which factor favors high lattice energy?

Solvation energy contributes to

Which step is part of the Born-Haber cycle?

Which energy is released when ions form a lattice?

Which ion property affects solvation?

Which is a solvation product?

Energy changes in stoichiometry relate to

Which statement about lattice energy is false?

What determines hydration energy magnitude?

Which term is used for energy required to form ions from atoms?

Which process is endothermic in many ionic formations?

Energy per mole of a solid lattice is

Solvation stabilizes ions in

What is the main use of the Born-Haber cycle?

Which energy is released when dissolving a salt in water?