Define 'molecule'Define 'ions'Define cation and an anionDefine 'chemical formula' Define 'valency'Explain the Law of Conservation of Mass
Question
Solution 1
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Molecule: A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.
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Similar Questions
The law of conservation of mass states that (a) matter is neither created nor destroyed. (b) the mass of an object remains the same even if chemical change occurs (c) the number of molecules before and after a chemical reaction cannot change. (d) mass is lost when a chemical change occurs.
a) Define atomic mass unitb) Give one example of a polyatomic cation and polyatomic anion respectively.
1. Write down the various postulates of Dalton’s atomic theory and explain the law of conservation of mass.
Which of the following statements is true about the law of conservation of mass?
Write the chemical formula and calculate the formula unit mass of the following compoundsa) Magnesium Nitrate b) Calcium hydroxide c) Aluminum oxide
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