Chemistry definition - Study guides, Class notes & Summaries
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A&P MHS1101- Week 1 Chemistry Definitions with Correct Answers
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Isotopes Correct Answer Atoms of the same element that have different numbers of neutrons 
 
Molecule Correct Answer a chemical structure consisting of at least two atoms held together by a chemical bond 
 
Compound Correct Answer a molecule that contains at least two different elements 
 
Molecular formula Correct Answer identifies constituent elements and how many atoms of each are present 
 
Structural formula Correct Answer identifies location of each atom 
 
Chemical bonds Correct Answer ho...
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OCR A LEVEL CHEMISTRY DEFINITIONS 2023- 2024 EXAM [ALREADY GRADED A+] WITH CORRECT DETAILED
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OCR A LEVEL CHEMISTRY DEFINITIONS 
EXAM [ALREADY GRADED A+] WITH CORRECT 
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Chemistry definitions IEB
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Chemistry definitions IEB 
Mixtures - ANS-A combination of two or more pure substances that are not chemically 
bonded together 
homogeneous mixture - ANS-A mixture with uniform composition and the various 
components of the mixture cannot be seen 
heterogeneous mixture - ANS-A mixture that does not have uniform composition and 
the various components of the mixture can be seen 
Pure substances - ANS-Any substance that is not a mixture, including elements and 
compounds 
Elements - ANS-Pure ...
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Chemistry Definitions Acids And Bases Study Practice Questions 2024.
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Chemistry Definitions Acids And Bases Study Practice Questions 2024. 
concentration - correct answer concentration is the abundance of a constituent divided by the total volume of a mixture. 
 
equilibrium - correct answer There is equilibrium when the concentrations of reactants and products are in an unchanging ratio. Kc=[C]c[D]d/[A]a[B]b 
 
molarity - correct answer The number of moles of solute (the material dissolved) per liter of solution. 
 
pH - correct answer pH is a numeric scale used...
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iGCSE Chemistry Pearson Edexcel Complete and Quick Fire Questions. Includes notes, practicals, exam tips, key definitions.
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iGCSE Chemistry Pearson Edexcel Complete and Quick Fire Questions. Includes notes, practicals, exam tips, key definitions.
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All IEB SAGS Chemistry Definitions 2023-2024
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All IEB SAGS Chemistry Definitions 
 
Molar Mass - ANS-The mass in grams of one mole of that substance. 
Solute - ANS-The substance that is dissolved in the solution. 
Solvent - ANS-The substance in which another substance is dissolved, forming a 
solution. 
Concentration - ANS-The number of moles of solute per volume of solution. 
Standard Solution - ANS-A solution of known concentration. 
Intramolecular Bond - ANS-Bond occurring between atoms within molecules. 
Electronegativity - ANS-A measu...
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IGCSE Chemistry Definitions Exam Questions And Answers 2024.
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IGCSE Chemistry Definitions Exam Questions And Answers 2024. 
 
 
Melting - CORRECT ANSWER Solid changing into a liquid 
 
Freezing - CORRECT ANSWER Liquid changing into a solid 
 
Condensation - CORRECT ANSWER Gas/vapour changing into a liquid 
 
Evaporation - CORRECT ANSWER Liquid changing into a gas/vapour 
 
Melting Point - CORRECT ANSWER Temperature at which a solid turns into a liquid 
 
Freezing Point - CORRECT ANSWER Temperature at which a liquid changes into a solid 
 
Boiling Point - C...
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IEB Matric Chemistry Definitions Exam 2023-2024
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IEB Matric Chemistry Definitions 
Exam 
Molar mass - ANS-The mass in grams of one mole of that substance 
Solute - ANS-The substance that is dissolved in the solution 
Solvent - ANS-The substance in which another substance is dissolved, forming a 
solution 
Concentration - ANS-The number of moles of solute per unit volume of solution 
Standard solution - ANS-Solution of known concentration 
Intramolecular bond - ANS-Occurring between atoms within molecules 
Electronegativity - ANS-Measure of t...
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A-level Chemistry Definitions questions and answers well illustrated.
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A-level Chemistry Definitions questions and answers well illustrated. 
 
 
 
 
 
 
 
 
 
 
 
 
isotopes - ANS.atoms of the same element with different numbers of neutrons 
 
atomic (proton) number - ANS.the number of protons in the nucleus of an atom 
 
mass (nucleon) number - ANS.the number of particles (protons and neutrons) in the nucleus 
 
ion - ANS.a positively or negatively charged atom or (covalently bonded) group of atoms (molecular ion) 
 
relative isotopic mass - ...
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A-level Chemistry Definitions 100% Pass
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A-level Chemistry Definitions 100% Pass isotopes atoms of the same element with different numbers of neutrons 
atomic (proton) number the number of protons in the nucleus of an atom 
mass (nucleon) number the number of particles (protons and neutrons) in the nucleus 
ion a positively or negatively charged atom or (covalently bonded) group of atoms (molecular ion) 
relative isotopic mass the mass of an atom of an isotope compared with one twelfth of the mass of an atom of carbon-12 
relative atom...
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