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Is energy given out when elements are formed from a compound?
Yes, energy is typically released when elements combine to form a compound in an exothermic reaction. This is because the new bonds formed in the compound are more stable than the individual atoms, resulting in the release of energy.
A great deal of energy is produced when an ionic compound is formed?
When an ionic compound is formed, energy is released because the ions are attracted to each other by strong electrostatic forces. This energy is known as the lattice energy and is usually released in the form of heat.
What is the relationship between the standard free energies of formation and the thermodynamic stability of a chemical compound?
The standard free energy of formation indicates the stability of a chemical compound. A lower value suggests greater thermodynamic stability, meaning the compound is more likely to form and exist in a given environment.
How to find the percent by mass of a compound in a given sample?
To find the percent by mass of a compound in a given sample, you need to divide the mass of the compound by the total mass of the sample and then multiply by 100. This will give you the percentage of the compound in the sample.
Is calcium oxygen an compound?
As given in the question, it is two separate elements. However, the two elements do combine to form the compound 'Calcium oxide', with the formula ' CaO'. CaO ( calcium oxide) is commonly known as 'Lime/Quicklime').
