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The substances in paraffin do not chage when a candle burns?
When a candle burns, the paraffin wax reacts with oxygen to form carbon dioxide and water vapor. The carbon atoms in the paraffin combine with oxygen from the air to produce heat, light, carbon dioxide, and water. This chemical reaction is why the substances in paraffin change when a candle burns.
What are the theee new substances formed when wood burns?
Water H20, Carbon Dioxide (CO2) and ash (potassium salts etc).
Is burning an irreversible change that produces no new substances?
Burning is an irreversible change that produces new substances. When a substance burns, it undergoes a chemical reaction with oxygen to form new compounds like carbon dioxide, water vapor, and ash. This transformation is not easily reversible, as the original substances are no longer present in their original form.
What two new substances are made when methane burns?
Oxygen, Carbon, Hydrogen. <- There are three new ones.
What is formed when two substances combine and form a new substances combine and form a new substance which cannot return to their original form?
a chemical reaction
What new substances are made when a fuel burns?
Carbon dioxide and water, assuming the fuel is a hydrocarbon.
Is the change that takes place when two or more substances interact to form new substances.?
A chemical reaction is the change that takes place when different substances react with one another to form new substances. The substances that react in a chemical reaction are called the reactants and the new substances formed are called the products.
What is the new substance form in burning of wood?
Wood ash (potash) is the main result of burning wood and potash can be used in the garden as a fertilizer. Also, if wood is slowly burnt (charred?) in a kiln, where oxygen is kept out, charcoal is produced.
Why do chemicals combine?
To form new substances.
What happens to the matter in a log when it burns in a fireplace?
When a log burns in a fireplace, the matter in the log undergoes a chemical reaction called combustion. The heat from the fire breaks down the chemical bonds in the wood, releasing energy in the form of heat and light. The carbon in the wood combines with oxygen in the air to form carbon dioxide and other byproducts like water vapor and ash.
The change that takes place when two or more substances interact to form new substances is called a reaction.?
two
Is a new substances must form is true about chemical reaction?
Yes, after a chemical reaction new substances are formed.
