Elements are substances that cannot be broken down by chemical means. Elements are made up of atoms, which are the smallest particles of matter that can enter into chemical reactions.
Q. Which of the following can not be broken down by chemical means?
A pure substance can be either an element or a compound. Elements are those pure substances that cannot be decomposed by ordinary chemical means such as heating, electrolysis, or reaction. Gold, silver, and oxygen are examples of elements. Compounds can be separated into their components only by chemical change.
Table of Contents
- Q. Which of the following can not be broken down by chemical means?
- Q. Can co be broken down by chemical means?
- Q. Can a compound be broken down into carbon and hydrogen?
- Q. What can compounds be broken down by?
- Q. What is the difference between a solid solution and a compound?
- Q. Can sugar be broken down or separated?
- Q. Is dry ice a element or mixture?
Q. Can co be broken down by chemical means?
The substance that can be broken down by chemical means from the choices given is CO (Carbon monoxide). Carbon monoxide is a compound made up of carbon and oxygen and can therefore be broken by chemical means.
Q. Can a compound be broken down into carbon and hydrogen?
A compound is a substance that contains two or more elements chemically combined in a fixed proportion. The elements carbon and hydrogen combine to form many different compounds. However, it is not an element because it can be broken down into simpler substances—carbon and hydrogen.
Q. What can compounds be broken down by?
Compounds can be decomposed by chemical means into elements or simpler compounds. Water is broken down into hydrogen and oxygen by electrolysis. Candle wax, a mixture of hydrocarbons, is changed in the candle flame by combustion (with oxygen) to a mixture of the simpler compounds carbon dioxide (CO2) and water.
Q. What is the difference between a solid solution and a compound?
The components of a mixture can be separated by physical means, while the components of a compound can only be separated by chemical reactions that break and/or form bonds. A solid solution is a type of mixture that can be separated by physical means, so it does not fall into the same category as a compound.
Q. Can sugar be broken down or separated?
Table sugar, or sucrose, is not a mixture. It is a compound. Let me start with a pure substance and work up from there. Elements are pure substances because they cannot be broken down any more.
Q. Is dry ice a element or mixture?
Dry ice is the solid form of carbon dioxide (CO2), a molecule consisting of a single carbon atom bonded to two oxygen atoms. Dry ice is colorless, odorless, and non-flammable, and can lower the pH of a solution when dissolved in water, forming carbonic acid (H2CO3).
