Macmillan Learning Calculate the energy change of the reaction shown. Use the list of bond energies. H₂(g) + Br₂(g) →→→ 2 HBr(g) ->> I energy change: 101 Incorrect Identify whether the reaction is exothermic or endothermic. exothermic endothermic FEB 21 tv NA kJ/mo

Create a lewis dot structure for CaCO3. Draw it like the picture attached.

In each row, pick the compound with the bigger lattice energy. Note: lattice energy is always greater than zero. Which compound has the bigger lattice energy? Nal Na Cl O Rb Br Cao O X Sr Br₂ CaF₂ 5

I need help calculating the enthalpy of the reaction and whether the reaction is endothermic or exothermic.

we would predict that the imaginary ionic compound XF would have a (higher /lower) lattice energy than YyF2 because

O Macmillan Learning Calculate the energy change of the reaction shown. Use the list of bond energies. H₂(g) + Br₂(g) → 2 HBr(g) energy change: 101 Incorrect Identify whether the reaction is exothermic or endothermic. exothermic endothermic FEB 21 tv MacBook Pro N A O Attempt 1 kJ/mol

The charges and sizes of the ions in an ionic compound affect the strength of the electrostatic interaction between the ions and thus the strength of the lattice energy of the ionic compound. Arrange the compounds according to the magnitudes of their lattice energies based on the relative ion charges and sizes. Highest lattice energy Lowest lattice energy Answer Bank KCI MgO NaF MgF₂

Question 2 please

Use the graph to answer the following questions: What type of reaction is shown by the graph below? How does the bond energy of the reactants compare to the bond energy of the products? Activation energy +AH Reactants Products Time O The graph shows an exothermic The bond energy of the reactants is higher than the bond energy of the products. O The graph shows an endothermic reaction. The bond energy of the reactants is lower than the bond energy of the products. O The graph shows an endothermic The bond energy of the reactants is higher than the bond energy of the products. O The graph shows an exothermic reaction. The bond energy of the reactants is lower than the bond energy of the products. Potential energy (kJ)

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