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Why does water contains two types of atoms if its a pure substance?
Wiki User
∙ 7y ago
It sounds like you are confusing meaning of "substance" with the meaning of "element". A pure element is a single type of atom. A pure compound will contain only one type of molecules. The molecules may be made up of more than one element, but every molecule of the compound will have exactly the same elements in exactly the same ratios and bound in exactly the same structure. All water molecules are the same:: H2O. If the only type of molecule you have is H2O, you have "pure water".
"Substance" just means "a particular kind of matter with uniform properties". Pure water will have uniform properties - note that those uniform properties are quite different from those that are displayed by elements that make it up when in their pure form; at room conditions water is liquid but pure hydrogen and pure oxygen are gases.
Water is a pure substance but it is a compound and is made of oxygen and hydrogen.
Wiki User
∙ 7y ago
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What substance contains all type of atoms found in minerals?
water evporates has all of the types of atoms
Is icy water both pure and contains different types of atoms?
All water contains two different types of atoms: hydrogen and oxygen, twice as much hydrogen as oxygen. If its pure water that's all there is in it. The purity of the water has nothing whatsoever to do with its temperature: pure water can be boiling hot, and icy water can be filled with impurities.
How many grams of hydrogen are in one mole of water?
One mole of any substance contains 6.022x10 to the power of 23 molecules of that substance. A water molecule contains two hydrogen atoms so one molecule of water has 12.044x10 to 23 hydrogen atoms.
What must someone know in order to classify it as a pure substance?
A pure substance is a substance that consists solely of the same atoms/molecules.So a volume of water that contains only H2O is a pure substance. A block of iron that contains only Fe atoms is pure substance. A pure substance can be composed of atoms or molecules as I said before BUT they have to be exactly the same.A substance that has constant chemical composition and characteristics
What are single atoms?
A pure substance is a substance that is consistent throughout; it only has one substance. Example: pure sugar has only sugar throughout. Because of this, there could be any atoms in a pure substance, but those atoms would be in definite proportions.
What substance contains all type of atoms found in minerals?
water evporates has all of the types of atoms
Which substance contain more hydrogen atoms per molecule ammonia or water?
Ammonia; it contains three hydrogen atoms per molecule, while water has two.
Is Mineral water pure substance or mixture?
No. A pure substance describes one that contains only one type of element/molecule. Mineral water is a mixture, since it contains many different types of minerals, next to water, and can therefore not be called a "pure" substance.
Is icy water both pure and contains different types of atoms?
All water contains two different types of atoms: hydrogen and oxygen, twice as much hydrogen as oxygen. If its pure water that's all there is in it. The purity of the water has nothing whatsoever to do with its temperature: pure water can be boiling hot, and icy water can be filled with impurities.
Is mineral water a pure water?
No. A pure substance describes one that contains only one type of element/molecule. Mineral water is a mixture, since it contains many different types of minerals, next to water, and can therefore not be called a "pure" substance.
How many grams of hydrogen are in one mole of water?
One mole of any substance contains 6.022x10 to the power of 23 molecules of that substance. A water molecule contains two hydrogen atoms so one molecule of water has 12.044x10 to 23 hydrogen atoms.
What must someone know in order to classify it as a pure substance?
A pure substance is a substance that consists solely of the same atoms/molecules.So a volume of water that contains only H2O is a pure substance. A block of iron that contains only Fe atoms is pure substance. A pure substance can be composed of atoms or molecules as I said before BUT they have to be exactly the same.A substance that has constant chemical composition and characteristics
What is Avogadro's number the number of?
The number of elementary entities in a mole of the substance. The elementary entities depends on the particles making up the substance. For example, argon is made of single atoms, so a mole of argon simply contains Avogadro's number of atoms. Water, on the other hand, is made of molecules, so a mole of water contains Avogadro's number of molecules. Now each water molecule, H2O, contains 3 atoms so a mole of water contains 3xAvogadro's number of atoms. Sodium chloride, NaCl, is made of sodium and chloride ions, in a ratio of 1:1. So a mole of sodium chloride contains Avogadro's number of sodium ions, and Avogadro's number of chloride ions. A mole of sodium chloride therefore contains 2xAvogadro's number of ions in total. The number comes from the number of carbon atoms in 12g of carbon-12.
Pure substance with different types of atoms?
A substance made of different types of atoms is a compound. For example, water (H2O) is made of hydrogen and oxygen. Hydrogen gas (H2) and oxygen gas (O2) are both elements as they only contain one kind of atom. See http://www.chem.purdue.edu/gchelp/atoms/elements.html
How many different kinds of atoms make up a molecule of water?
There are two types of elements in water. It is made up of Oxygen and Hydrogen. There are two Hydrogen atoms for every Oxygen atoms and the chemical compound of water is H2O.
What is the definition of pure substances?
A pure substance is a substance that consists solely of the same atoms/molecules.So a volume of water that contains only H2O is a pure substance. A block of iron that contains only Fe atoms is pure substance. A pure substance can be composed of atoms or molecules as I said before BUT they have to be exactly the same.A substance that has constant chemical composition and characteristics
Water that contains hydrogen 2 atoms instead of hydrogen 1 atoms is called?
Water that contains hydrogen-2 instead of hydrogen-1 is called heavy water.
