Which substance could be decomposed by a chemical change?

compounds Salt and other compounds can only be decomposed into their elements by a chemical process. A chemical change is a change that produces matter with a different composition. Many compounds can be decomposed into their elements by heating. When sugar is heated, it decomposes into carbon and water.

Which substance can be decomposed by chemical means quizlet?

Which substance CAN be broken down by chemical means? Compound because the atoms of the elements are combined in a fixed proportion.

Which substances can be decomposed?

Answer: Salt and other compounds can only be decomposed into their elements by a chemical process.

Which substance can be decomposed by chemical means examples?

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.

Can aluminum be decomposed by chemical means?

A substance that cannot be broken down into chemically simpler components is an element. Aluminum, which is used in soda cans, is an element. A substance that can be broken down into chemically simpler components (because it has more than one element) is a compound.

Which substance can be decomposed by a chemical change Ammonia?

Ammonia NH3 is a compound which can be decomposed chemically in its elements nitrogen and hydrogen but iron, calcium and sulphur are elements that can not be decomposed further.

Which substance can be decomposed by chemical mean a cobalt B Krypton C Methane D zirconium?

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Questions	Answer	Explanations
15 Which substance can be decomposed by chemical means? (1) cobalt (3) methane (2) krypton (4) zirconium	3	a compound…methane CH4 the other 3 are elements

Can sucrose be decomposed by chemical means?

Ethanol, sucrose and water are composed of atoms of several different elements so we can decompose them with adequate chemical reactions.

Can iron be decomposed chemically?

Ammonia NH3 is a compound which can be decomposed chemically in its elements nitrogen and hydrogen but iron, calcium and sulphur are elements that can not be decomposed further.

Can ethanol be decomposed by chemical means?

Ethanol, sucrose and water are composed of atoms of several different elements so we can decompose them with adequate chemical reactions.

Can ammonia be decomposed by chemical means?

1 Answer. Well, certainly water and ammonia can be decomposed by chemical change……..

Can sodium be decomposed by a chemical change?

Sodium is an element, a substance which cannot be broken down into smaller pieces by any type of chemical reaction. We can also find it in the periodic table of elements.

Can ch4 be decomposed by chemical means?

Elements are chemically the simplest substances and hence, cannot be broken down using chemical methods. But Ammonia, methane and water are compounds that can be decomposed further into their elements. Lunch is mixture of compounds that can also be decomposed chemically.

Can sodium be decomposed by chemical means?

Sodium is an element, a substance which cannot be broken down into smaller pieces by any type of chemical reaction.

Can carbon be decomposed by chemical means?

There is no chemical process that will break down carbon into simpler substances because carbon is an element.

Can copper be broken down by chemical means?

Element is the simplest subtance that cannot be broken down by any chemical methods. Compound is made of two or more elements chemically combined together. Mixture is made from two or more substances physically combined together. Example of elements: copper, carbon and all found in the Periodic table.

Can carbon dioxide be decomposed by a chemical change?

James E. Miller, a chemical engineer at Sandia National Laboratories, breaks it down: Splitting carbon dioxide (CO2) into carbon and oxygen can in fact be accomplished, but there is a catch: doing so requires energy.

Can ammonia be decomposed chemically?

Ammonia NH3 is a compound which can be decomposed chemically in its elements nitrogen and hydrogen but iron, calcium and sulphur are elements that can not be decomposed further.

Can CO2 be decomposed by chemical means?

Can water be decomposed by a chemical change?

The electrolysis of water causes a chemical change in which water molecules are split to form hydrogen and oxygen—two substances that are chemically different from water. Decomposing water is difficult and cannot be accomplished through heating alone. Water is not broken apart even by the heat of a volcanic eruption!

Can a pure substance be further decomposed by chemical means?

An element is a pure substance which cannot be broken down by further chemical techniques. These include heating, cooling, electrolysis and reacting with other chemicals. (By the way, it is correct that an atom can be destroyed, but NOT by chemical means.

Can compounds be broken down?

Compounds can be broken down into their constituent elements by chemical changes. A chemical change (that is, a chemical reaction) is one in which the organization of the atoms is altered.

Can elements be chemically decomposed?

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 are pure substances formed by the combination of elements; they can be decomposed by ordinary chemical means.

Can Methane be decomposed by chemical means?

Elements are chemically the simplest substances and hence, cannot be broken down using chemical methods. But Ammonia, methane and water are compounds that can be decomposed further into their elements. Lunch is mixture of compounds that can also be decomposed chemically.

Can calcium carbonate be decomposed?

Calcium carbonate decomposes to give CaO (solid) and CO2 (gas).

Can methane be broken down?

A simple molecule in the atmosphere that acts as a "detergent" to break down methane and other greenhouse gases has been found to recycle itself to maintain a steady global presence in the face of rising emissions, according to new NASA research.

Can co2 be decomposed by chemical means?

Can water be broken down by chemical means?

Each molecule of water is a chemical combination of two hydrogen atoms and one oxygen atom. Water can be decomposed into its elements only by chemical means.

Can iodine be decomposed?

Abstract. Liquid hydrogen iodide is decomposed to form hydrogen and iodine in the presence of water using a soluble catalyst. Decomposition is carried out at a temperature between about 350/sup 0/ K. and about 525/sup 0/ K.

Does cacl2 decompose?

ODOURLESS HYGROSCOPIC COLOURLESS OR WHITE CRYSTALS. Decomposes on heating. This produces toxic and corrosive fumes of chlorine (see ICSC 0126).