Combustion and neutralisation 1 Study guides, Class notes & Summaries

Practicals Chemistry AQA A-level Rated A+ Required Practical 1 - titration and making a standard solution Making a standard solution 1. weigh the required mass of solid using a sample bottle on a 2 dp balance. 2. transfer the solid into a beaker using distilled water to wash it out- preventing any solid remaining in the sample bottle. 3. reweigh the sample bottle and work out the difference. 4. Add 100cm3 of distilled water to the beaker to dissolve the solid (small volume of water) using a...

2023 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/3F Foundation Tier Paper 3 Physical Sciences Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] Friday 9 June 2023 Afternoon Time allowed: 1 hour 45 minutes Materials For this paper you must have: ⚫ a ruler ⚫ a protractor ⚫ a scientific calculator ⚫ the periodic table (enclosed) the Physics Equations Sheet (enclosed). Instructions ⚫ Use black ink or black ball-point pen. Pencil should only be used for drawing. ...

GCSE COMBINED SCIENCE: SYNERGY 8465/3F Foundation Tier Paper 3 Physical Sciences Version: 1.0 Final G/LM/Jun23/E6 8465/3F (JUN2384653F01) GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 3 Physical Sciences Friday 9 June 2023 Afternoon Time allowed: 1 hour 45 minutes Materials For this paper you must have: l a ruler l a protractor l a scientific calculator l the periodic table (enclosed) l the Physics Equations Sheet (enclosed). Instructions l Use black ink or black ball-po...

Test for carbonates - correct answer - add dilute HCL - it makes carbon dioxide test for carbon dioxide by bubbling it through lime water Test for ammonium ions - correct answer -add sodium hydroxide -warm the mixture -hover damp red litmus paper over it , if it turns blue the ions are present Test for sulphate ionz (SO4 2-) - correct answer - add dilute HCL - then add BaCl2 - BaSO4 is made which is insoluble in water so a white precipitate will be formed Test for Halides (Cl-,...

GCSE COMBINED SCIENCE: SYNERGY 8465/3F Foundation Tier Paper 3 Physical Sciences Version: 1.0 Final G/LM/Jun23/E6 8465/3F (JUN2384653F01) GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 3 Physical Sciences Friday 9 June 2023 Afternoon Time allowed: 1 hour 45 minutes Materials For this paper you must have: l a ruler l a protractor l a scientific calculator l the periodic table (enclosed) l the Physics Equations Sheet (enclosed). Instructions l Use black ink or black ball-po...

GCSE Edexcel Chemistry 2023 Exam Questions And Correct Answers Acid - ANSWER a substance with a PH of less than 7 a substance that forms H+ ions in water Acid Rain - ANSWER acidic rainwater that forms when sulphur dioxide dissolves in rain droplets Activation Energy - ANSWER the minimum amount of energy that reactant particles must have when they collide in order to react Addition Polymer - ANSWER a large molecule made from alkene monomers which bond together...

GCSE COMBINED SCIENCE: SYNERGY 8465/3F Foundation Tier Paper 3 Physical Sciences Version: 1.0 Final G/LM/Jun23/E6 8465/3F (JUN2384653F01) GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 3 Physical Sciences Friday 9 June 2023 Afternoon Time allowed: 1 hour 45 minutes Materials For this paper you must have: l a ruler l a protractor l a scientific calculator l the periodic table (enclosed) l the Physics Equations Sheet (enclosed). Instructions l Use black ink or black ball-po...

Test for carbonates - - add dilute HCL - it makes carbon dioxide test for carbon dioxide by bubbling it through lime water Test for ammonium ions - -add sodium hydroxide -warm the mixture -hover damp red litmus paper over it , if it turns blue the ions are present Test for sulphate ionz (SO4 2-) - - add dilute HCL - then add BaCl2 - BaSO4 is made which is insoluble in water so a white precipitate will be formed Test for Halides (Cl-, Br-, I-) - - add nitric acid - add silver nitrate -...

EDEXCEL CHEMISTRY PAPER 2, question and answer, verified Proton c/m? +1, 1 Neutron c/m? 0, 1 Electron c/m? -1, 1/1500 Mass number? Num of protons + neutrons Atomic number? Num protons Isotope? Different atom of the same element, same num protons. Diff number neutrons. Mendeleev vs Now? Mendeleev: Gaps for elements, No noble gases, fewer elements. Both had metals and non-metals. Both had groups/periods Periods? Rows, Increasing atomic m...

GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 3 Physical Sciences Friday 9 June 2023 Afternoon Time allowed: 1 hour 45 minutes Materials For this paper you must have: l a ruler l a protractor l a scientific calculator l the periodic table (enclosed) l the Physics Equations Sheet (enclosed). Instructions l Use black ink or black ball-point pen. Pencil should only be used for drawing. l Fill in the boxes at the top of this page. l Answer all questions in the spaces provided. D...