Which is the most accurate description of compounds?
2 answers:
Answer: Option (d) is the correct answer.
Explanation:
A compound is defined as the substance in which only different atoms chemically combine together in a fixed ratio by mass.
For example, NaCl, HCl, , etc are all compounds.
Compounds are also pure substances like elements as they can be broken down into their constituent particles.
Whereas substances that are made up of only one type of atom are known as elements.
Thus, we can conclude that the most accurate description of compounds is that they are made up of atoms of 2 or more elements that are chemically combined.
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<u>Answer:</u> The chemical equation is written below.
<u>Explanation:</u>
Every balanced chemical equation follows law of conservation of mass.
This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This also means that total number of individual atoms on reactant side must be equal to the total number of individual atoms on the product side.
The chemical equation for the reaction of elemental boron and oxygen gas follows:
By Stoichiometry of the reaction:
4 moles of elemental boron reacts with 3 moles of oxygen gas to produce 2 moles of diboron trioxide.
The chemical equation for the reaction of diboron trioxide and water follows:
By Stoichiometry of the reaction:
1 mole of diboron trixoide reacts with 3 moles of water to produce 2 moles of boric acid.
Hence, the chemical equations are written above.