In almost all cases, it requires energy to break a compound down to its constituent elements. There are, however, some cases in which the decay of a compound into its constituent elements would release energy. Platinum hexafluoride would be an example.
The energy change that happens when a substance forms from its elements (APEX)
A compound is a combination of two or more elements. These elements join together based on their molecular bonds. No two elements combine in the same percentage.
False. Formation of a compound is usually exothermic because a Noble Gas configuration forms around each atom. Therefore energy is given off during formation, and the atoms in the compound are more stable.
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').
No, a compound is made up of two or more different elements that are chemically bonded together in a fixed ratio. This distinguishes compounds from elements, which are composed of identical particles.
A given compound is always made of the same elements in the same proportion.
The energy change that happens when a substance forms from its elements (APEX)
The two substances are the products of the decomposition reaction. They are formed by breaking the bonds within the compound to create new compounds or elements. The specific substances produced depend on the chemical properties of the original compound.
A compound is a combination of two or more elements. These elements join together based on their molecular bonds. No two elements combine in the same percentage.
False. Formation of a compound is usually exothermic because a Noble Gas configuration forms around each atom. Therefore energy is given off during formation, and the atoms in the compound are more stable.
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').
If you wanted to, you could ask what the heat of formation is of a given compound such as diphosphorus pentasulfide, but if you want to know about a heat of reaction, you have to specify a reaction. A compound is not a reaction.
No, a compound is made up of two or more different elements that are chemically bonded together in a fixed ratio. This distinguishes compounds from elements, which are composed of identical particles.
The question is incomplete. No options are given (for which of the following) to answer the question.
Oh honey, we're talking about oxides here. When elements get cozy with oxygen and start burning, they form these compounds called oxides. It's like a fiery love affair between elements and oxygen, leaving behind these sassy oxides as their legacy.
The energy required to separate one mole of ions of an ionic compound is called the lattice energy. It is a measure of the strength of the ionic bonds within the compound.
im not really sure....sorry