Afilament of a light bulb is made from a pure sample of tungsten. which term or terms could be used to describe this sample of tungsten?

Answer;

-Pure chemical substance and element

Explanation;

-Pure substances are substances that are made of only one type of atom or molecule.A pure substance can be either an element or a compound, but the composition of a pure substance doesn’t vary.

-An element is a pure substance that cannot be broken down into different types of substances by chemical means. All elements are pure substances. An element is composed of a single kind of atom. An atom is the smallest particle of an element that still has all the properties of the element.

-Tungsten is an element and therefore a pure substance.

i think it is dna, i'm not totally sure but i think it might be.