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What is a chemical reaction melting ice rubbing a marker on paper burning a candle rusting iron?
Wiki User
∙ 9y ago
Rusting iron is the chemical change.
Wiki User
∙ 9y ago
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What chemical reaction that absorbs heat called?
Endothermic reactionFor endothermic reactions Hfinal > Hinitial and DH is positive (+DH)It can be for example melting ice, or vaporising Rubbing Alcohol.---------Change of phases are not chemical reactions !
Is rubbing a marker on a paper a chemical reaction?
It is simply a physical change, because the attributes of the paper are not changing.
Why the matchstick start burning on rubbing it on the side of the matchbox?
The friction causes heat, which ignites the match head.
What is the chemical symbol for the compound rubbing alcohol?
One is that it is quite flammable. It's not clear what chemical properties you mean however. It is called isopropyl alcohol, isopropanol, or 2-propanol, or propan-2-ol. It's chemical formula is C3H8O As regards its physical properties, it is a clear liquid, with a strong odor. It is also fairly volatile (evaporates easily). It's molar mass is 60.10 g/mole, it's density is .785 g/cm3, its melting point is -89 °C and its boiling point is 82.3 °C.It is completely soluble (miscible) in water, ethanol, ether, acetone and toluene, and slightly soluble in brine,For more information, see the Web Links to the left of this answer.
What is the chemical that kills bacteria in hand sanitizer?
I believe that it's alcohol (ethyl or rubbing- not sure which).
What chemical reaction that absorbs heat called?
Endothermic reactionFor endothermic reactions Hfinal > Hinitial and DH is positive (+DH)It can be for example melting ice, or vaporising Rubbing Alcohol.---------Change of phases are not chemical reactions !
Is rubbing a marker on a paper a chemical reaction?
It is simply a physical change, because the attributes of the paper are not changing.
Why sand paper is used in rubbing magnesium in chemical reaction?
from rubbing this sand paper we get more friction in magnesium
What reactions occurs when rubbing alcohol and water?
There is no chemical reaction between isopropanol and water, they simply mix.
What role does rubbing the match head on a rough surface have in reaction involved in the burning of a match?
Rubbing the match head mixes together the two chemicals that make up the surface of the match head. Then they react with the air and cause an exothermic reaction.
Is a match being lit a physical or chemical change?
A burning match is a chemical change. Burning anything is a chemical change because it forms a new substance. A physical change just alters the shape or appearance of a substance. For example, burning wood turns it into ash, a new substance, so its a chemical change. Cutting a piece of wood in half changes how it looks, but its still the same substance as before, just separated into two pieces. There are three common types of evidence of a chemical change. 1. A change in color due to a reaction with another substance. The match is reacting with fire and oxygen. 2. The production of a gas. the match gives off a smoke. 3. Formation of a precipitate or a solid that forms and saparates from a liquid mixture. burning a match does not form a precipitate, but adding acid to milk causes the proteins in the milk to undergo a chemical change that alters their structure, so they clump together. * A burning match is an example of a chemical reaction in progress. When the matchstick burns, oxygen from the air is used, mainly to form water vapor and carbon dioxide. The smoke that is generated, is a complex mixture of gases and small particles from the matchstick.
Is abrasion chemical or mechanical?
Abrasion is mechanical. It means rubbing or sanding.
Why does the matchstick start burning on rubbing it on the side of the matchbox?
Red Phosphorus
What is the chemical formula rubbing alcohol?
Rubbing alcohol is a mixture of ethanol, iso-propanol, a dye etc.
What is the best chemical to use on earrings?
Rubbing alcohol
When rubbing alcohol is rubbed on your skin, it evaporates very quickly it is a chemical or physical property?
Chemical.
Does using rubbing alcohol on the skin for pain cause a reaction for Alcoholics?
No, it should not.
