Yes, it is true; but the absolute purity doesn't exist.
Sodium is an ELEMENT, a pure substance. As a pure substance there is nothing else with it.
A pure substance is one which contains only that substance and nothing else. An impure substance contains other substances in varying amounts.
Selenium is a chemical element. It can be said to be a pure substance; there is nothing else found in it.
Pure Banking nothing else.. Pure Banking nothing else..
Nothing. A molecule is a pure substance if it is of one element.
Sodium is a pure substance because it is an element and can not be broken down into anything else
Sodium is a pure substance because it is an element and can not be broken down into anything else
A pure substance is one that comprises either just one element or just one compound with nothing else mixed in. Thus:-Distilled water is a pure substance,Salt water is a mixture,24 carat gold is a pure substance,White gold is a mixture.
As per my knowledge pure substance does not have anything else added to it. Air and water are pure substances that exist in nature. A pure substance cannot be taken apart to locate more substances.
theoretically yes, but in real systems nothing is pure.
A physical property can be observed without changing the substance into something else.
A physical property can be observed without changing the substance into something else.