The Lattice Enthalpy of Calcium Bromide Is the Energy Change $\rightarrow$

question 8

Multiple Choice

The lattice enthalpy of calcium bromide is the energy change for the reaction

• A)CaBr₂(s)\(\rightarrow\) Ca(g)+ 2Br(g)
• B)CaBr₂(s)\(\rightarrow\) Ca²⁺(g)+ 2Br^-(g)
• C)Ca(s)+ Br₂(l)\(\rightarrow\) CaBr₂(s)
• D)CaBr₂(s)\(\rightarrow\) Ca(g)+ Br₂(g)
• E)Ca(g)+ 2Br(g)\(\rightarrow\) CaBr₂(g)

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Definitions:

Contribution Margin Ratio

A financial metric that measures the proportion of revenue that exceeds variable costs, indicating how much earnings can contribute towards fixed costs and profit.

Combined Margin

refers to the total margin generated by a product or entity after accounting for various types of costs, merging both gross and net margins to provide an overall profitability measure.

Fixed Expenses

Costs that do not change with the level of production or sales over a short period.

Turnover

A measure of the efficiency and effectiveness of a company's operations, often calculated as total revenues divided by total assets.