0
A sample that cannot be separated into two or more substances by physical means is what?
Wiki User
∙ 9y ago
A sample that cannot be separated into two or more substances by physical means is a compound. A compound is made up of 2 or more elements which cannot be broken down by physical means.
Wiki User
∙ 9y ago
Matthew Chiriguaya
An element
Add your answer:
Earn +20 pts
Which sample of matter can be separated into different substances by physical means?
LiCl (aq) is a mixture of a compound and water. The LiCl can be separated from the water. All the other choices are compounds: LiCl (s), NH3 (g), NH3 (L).
What sample of matter can be separated into different substances by chemical means?
Anything larger than a single atom. Compounds -- that is, substances chemically made from more than one species of atom -- can be chemically separated into their elemental parts. H2O can be seperated by electricity into H2 and O2. 2(H2O) + charge --> 2H2+O2
What can be observed only when the substances in a sample of matter are changing into different substances?
chemical change
Is a mixture always a chemical combining of substances?
Any particular isolated sample of a mixture has a definite chemical composition, but the general idea of a mixture, even of the same materials, implies variability in possible chemical composition.
Can a sample of matter change its composition or state?
For chemical reactions, the elements in a sealed vessel will not change. But, reactions can take place that would tend to take the sample to a state of equilibrium. Or, with heating or cooling the physical state can be changed.Another type of reaction is nuclear decay, in which radioactive substances will spontaneously decay to other radioactive substances, or decay to non-radioactive substances, thus actually changing the elements present.
How does properties can be observed only when the substances in a sample of matter are changing into different substances?
Chemical properties
What are the two methods to cool down substances?
- place a sample in a refrigerator- place a sample in liquid nitrogen
When you give a urine sample at the pediatrician do they routinely check for pregnancy?
not usually unless they prescribe you a medication that you cannot take while pregnant; or if your doing a physical
Sample of research proposal about physical education?
Eva I need a sample of research proposal for physical education..plz help..!
When can chemical properties be observe?
chemical properties can be observed only when the substances in a sample of matter are changing into different substances
How will identifying if a property is chemical or physical?
A physical property can be observed without changing the sample. Chemical properties requires you to change the sample.
What condition can chemical properties be observed?
Chemical Properties can be observed only when substances in a sample of matter are changing into different substances.
