What is an example of a pure substance?

Answer 1

A pure substance is a form of matter that has a definite composition and distinct properties. It may consist of only one type of atoms (examples: Fe(s), N2(g), S8(s)), or of only one compound where the atoms are connected in a defined way, (examples: FeS(s), CH4(g), NaNO3(s), H2O(l)).

This question is rather easily answered if you answer using only elements: Hydrogen, Helium, Carbon, Gold, Silver, Oxygen, Nitrogen, Argon, Calcium, Potassium, etc.

Here are a few pure substances that are not elements, rather compounds: Methane, carbon monoxide, carbon dioxide, pure water and table salt (sodium chloride).

non-iodized table salt

sugar

water H20

baking soda - sodium bicarbonate

oxygen

Answer 2

Some pure substances are simply elements: Hydrogen, Helium, Carbon, Gold, Silver, Oxygen, Nitrogen, Argon, Calcium, Potassium, etc.

Here are a few pure substances that are not elements, but rather are compounds: Methane, carbon monoxide, carbon dioxide, pure water and table salt (sodium chloride).

Answer 3

Hydrogen,Gold, Silver, Oxygen, Nitrogen, Methane, carbon monoxide, carbon dioxide, pure water and table salt (sodium chloride). order the hotline heavy from your local pizza hotline store at 204-222-2222

Answer 4

The purest substance you are likely to see is 24 karat gold, not only is it pure gold but gold is naturally isotopically pure (gold-197), not a mixture of several isotopes of the element.
The purest substance that you possess is the silicon inside the semiconductor chips in your electronic devices, although deliberately mixed with small amounts of other elements to create the transistors, resistors, and other circuit components in the chip these impurities mixed in are at a parts per billion level (much lower than residual impurities left in pure 24 karat gold). However silicon is a mixture of 3 isotopes: silicon-28 (92%), silicon-29 (5%), and silicon-30 (3%).
Oh well, nothing is really a perfectly pure substance.
Any substance that consists of a single element or chemical compound is a pure substance. These would include hydrogen, methane, gold, salt, sugar, or carbon dioxide.
Saltwater, air, and bronze (an alloy) are not pure substances, as their constituent compounds could be present in many different amounts in any given sample.

Answer 5

Distilled water, copper in electric wiring, sugar, baking soda, pottasium

Answer 6

salt in water or sugar in water

Answer 7

Water, Salt, Sugar, or any element

Answer 8

diamond