These two questions do not represent the same content.
Yes
Substance A is likely an element, as it cannot be broken down by a chemical change. Substance Z is likely a compound, as it can be broken down by a chemical change into simpler substances. From this information, it can be concluded that substances A and Z have different chemical compositions and properties.
Chemical Change
No, a compound can also be broken down through a chemical change. This typically involves a chemical reaction that alters the chemical structure of the compound to create different substances.
Yes. When fat is metabolized, it is broken down by a chemical reaction called hydrolysis.
Yes
All of the elements of the Periodic Table cannot be broken down into simpler substances.
Hexane is a compound. All chemical compounds can be broken down by chemical change (chemical reactions of many types) - not only hexane. All the other choices are elements which cannot be broken down by chemical changes.
Tungsten is an element. It has chemical symbol W. An element is a pure substance that cannot be further broken down into simpler substances through chemical means. A compound, on the other hand, is a substance that is composed of two or more elements that are chemically combined.
Yes, ammonia can be broken down by a chemical change. One way to break down ammonia is through a process called decomposition, where it can be broken down into nitrogen and hydrogen gases. This can be achieved through various chemical reactions or by applying heat or using a catalyst.
of course, by the intermediate of chemical reactions
Substance A is likely an element, as it cannot be broken down by a chemical change. Substance Z is likely a compound, as it can be broken down by a chemical change into simpler substances. From this information, it can be concluded that substances A and Z have different chemical compositions and properties.
yes they can
Tungsten is an element. It has chemical symbol W. An element is a pure substance that cannot be further broken down into simpler substances through chemical means. A compound, on the other hand, is a substance that is composed of two or more elements that are chemically combined.
Chemical Change
No. It is an element and fundamentally already as "broken down" as possible.
It is a physical change, the chemical form remain unchanged.