chemistry
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Popular books chemistry
Michael L. Bishop, Edward P. Fody, Carleen Van Siclen • ISBN 9781284238860
Karen C. Timberlake • ISBN 9780134421353
Carl A. Burtis, David E. Bruns • ISBN 9781455741656
Julia Burdge • ISBN 9781260565850
Latest notes & summaries chemistry
In what phase are most elements found? - Answer Solid 
Examples of substances composed of only one element - Answer Iron nail (Fe) and 
Aluminum foil (Al) 
Elements found in sugar - Answer Carbon, hydrogen, oxygen 
Elements found in brass - Answer Copper and Zinc 
Element - Answer A simple substance that cannot be broken down into other substances 
How many known elements are there? - Answer 118 known elements 
Mercury - Answer An element that is a silver-colored liquid 
An element that is an in...
Pure Substance - Answer Matter with a fixed composition and made up of identical 
particles. 
Homogeneous Solution - Answer Made up of a uniform composition. 
Heterogeneous Mixture - Answer Non-uniform solution/mixture. 
Filtration - Answer Separation of solid and liquid solutions. 
Chromatography - Answer Separation of liquid-liquid solutions using their differences in 
polarity. 
Distillation - Answer Separation of liquid-liquid solutions based on differences in boiling 
points. 
Physical Chan...
Proton - Answer A subatomic particle that has a positive charge and that is found in the 
nucleus of an atom 
Neutron - Answer A subatomic particle that has no charge and that is found in the nucleus 
of an atom 
Electron - Answer A subatomic particle that has a negative charge and is found outside the 
nucleus in the electron cloud. 
Nucleus - Answer Center of an atom 
electron cloud - Answer area around the nucleus of an atom where the atom's electrons are 
most likely to be found 
energy lev...
AQA 2023 A-level CHEMISTRY 7405/3 Paper 3 Question Paper + Mark scheme [MERGED] June 2023 Materials 
For this paper you must have: 
 the Periodic Table/Data Booklet, provided as an insert (enclosed) 
 a ruler with millimetre measurements 
 a scientific calculator, which you are expected to use where appropriate. 
Instructions 
 Use black ink or black ball-point pen. 
 Fill in the boxes at the top of this page. 
 Answer all questions. 
 You must answer the questions in the sp...
AQA 2023 A-level CHEMISTRY7405/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 
2023 Materials 
For this paper you must have: 
 the Periodic Table/Data Booklet, provided as an insert (enclosed) 
 a ruler with millimetre measurements 
 a scientific calculator, which you are expected to use where appropriate. 
Instructions 
 Use black ink or black ball-point pen. 
 Fill in the boxes at the top of this page. 
 Answer all questions. 
 You must...
AQA 2023 A-level CHEMISTRY7405/1 Paper 1 Inorganic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 
2023 
Materials 
For this paper you must have: 
 the Periodic Table/Data Booklet, provided as an insert (enclosed) 
 a ruler with millimetre measurements 
 a scientific calculator, which you are expected to use where appropriate. 
Instructions 
 Use black ink or black ball-point pen. 
 Fill in the boxes at the top of this page. 
 Answer all questions. 
 You m...
AQA 2023 AS CHEMISTRY7404/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2023 
Materials 
For this paper you must have: 
 the Periodic Table/Data Sheet, provided as an insert (enclosed) 
 a ruler with millimetre measurements 
 a scientific calculator, which you are expected to use where appropriate. 
Instructions 
 Use black ink or black ball-point pen. 
 Fill in the boxes at the top of this page. 
 Answer all questions. 
 You must answer...
AQA 2023 AS CHEMISTRY7404/1 Paper 1 Inorganic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2023 
Materials 
For this paper you must have: 
 the Periodic Table/Data Sheet, provided as an insert (enclosed) 
 a ruler with millimetre measurements 
 a scientific calculator, which you are expected to use where appropriate. 
Instructions 
 Use black ink or black ball-point pen. 
 Fill in the boxes at the top of this page. 
 Answer all questions. 
 You must answ...
AQA 2023 A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Question Paper + Mark scheme [MERGED} June 
Materials 
For this paper you must have: 
 the Periodic Table/Data Booklet, provided as an insert (enclosed) 
 a ruler with millimetre measurements 
 a scientific calculator, which you are expected to use where appropriate. 
Instructions 
 Use black ink or black ball-point pen. 
 Fill in the boxes at the top of this page. 
 Answer all questions. 
 You must a...
Edexcel as level chemistry questions and answers (100% verified ansewers)2024 graded A+