After making sure they are not dangerous, by smelling them.
AnswerNeither. Odor is not a change at all. Odor is airborne molecules that have a particular smell. A change is a process and odor is not a process. The things which cause odors can be either physical or chemical. For instance, the body odor is caused by chemical changes, but if you open jar of a smelly chemical, that is a physical change (some of the molecules of the chemical are evaporating and are thus airborne).When talking about mixing chemicals and substances, a change in odor is a chemical change.(I assume this is what you meant when you asked is odor a chemical or physical change)
Magnesium itself does not have a distinct odor. However, when it reacts with other substances, such as in burning magnesium or in certain chemical reactions, it can produce a metallic or burning smell.
Substances formed in chemical changes have different physical and chemical properties compared to the original substances. This can include changes in color, odor, state of matter, melting/boiling points, and reactivity. The chemical composition of the new substances is also different from the original substances.
A chemical change forms new substances with different chemical properties from the original substances involved in the reaction. This can include changes in color, odor, temperature, or state of matter.
A chemical reaction changes the chemical properties of substances involved by forming new substances with different chemical compositions. This can result in changes in physical properties such as color, temperature, odor, and state of matter.
This is ethanol (C2H5OH) with some added substances to modify the color, odor and taste.
No, the odor of gasoline is a physical property, not a chemical property. Chemical properties describe how a substance interacts with other substances to form new substances, while physical properties describe observable characteristics like color, odor, and texture.
Vinegar having a pungent odor is a physical property, as it is related to our perception of its scent. Chemical properties, on the other hand, relate to how a substance interacts with other substances on a molecular level.
The only evidence of a chemical change is the formation of new substances with different chemical properties than the original substances. This can include changes in color, odor, temperature, or the formation of a precipitate.
You can determine if new substances were formed in a chemical reaction by observing changes such as color shifts, gas production (bubbles or odor), temperature changes, and the formation of a precipitate (solid). Additionally, analyzing the chemical composition before and after the reaction can reveal changes in the molecular structure. If the properties differ significantly from the original substances, it indicates that new substances have been created.
Yes!
Yes, color and odor are examples of physical properties. Color refers to the way an object reflects light, while odor describes how something smells. These properties can help to identify and classify different substances.