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To determine an element's molar mass, it is necessary to add together the weight of all of the atoms present in the sample. The atomic weight of an element is printed inside the element's box on the periodic table. The m... More »

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The molar mass of urea is 60.06 grams per mole. It has the structural formula CO(NH2)2 and exists as a single carbonyl group bonded to two amine groups. More »

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The molar mass of Ca (OH)2 is 74.093 grams per mole. Calcium hydroxide is a crystalline white powder at room temperature and is commonly called slaked lime. It has a high melting point of 1,076 degrees Fahrenheit and is ... More »

www.reference.com Science Chemistry Atoms & Molecules
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The atomic theory formulated by the British chemist John Dalton proposes that atoms are indivisible particles comprising all matter; atoms of the same element share identical properties, including shape, size and mass; a... More »

www.reference.com Science Chemistry Atoms & Molecules

An atom represents the smallest part of an element that still retains the characteristics of that element, and the bonding between two or more atoms forms a molecule. Molecules are often defined as the smallest part of a... More »

www.reference.com Science Chemistry Atoms & Molecules

An element is defined as a substance made up of atoms with a specific number of protons. That means that every atom with 1 proton is always a hydrogen atom. Elements cannot be broken down further by chemical means and al... More »

www.reference.com Science Chemistry Atoms & Molecules

Elements are made of atoms, which are particles that represent the most basic form of an element. An atom is the smallest particle of an element and cannot be further divided without becoming a less complex particle; in ... More »

www.reference.com Science Chemistry Atoms & Molecules